Posttraumatic stress disorder (PTSD) has been used in a variety of ways as a criminal defense.¹ Despite its range of applications in criminal defense, it can be a formidable task to establish a valid relationship between PTSD and criminal behavior. This difficulty arises because a causal connection must be established both between the traumatic stressor and the psychiatric symptoms and between the psychiatric symptoms and the criminal act.² Of the possible means by which PTSD can be used in criminal defenses, the diagnosis can be used as a sentencing mitigating factor in criminal defenses.³ Even if an individual’s PTSD cannot be compellingly shown to negate criminal liability, the severity of the defendant’s trauma and suffering due to PTSD symptomology may support leniency at the sentencing stage.

PTSD can be treated with skepticism by courts for various reasons, with one central concern being feigning of the diagnosis to escape punishment by the legal system.⁴ Conversely, individuals who do not identify with having the diagnosis or do not want to disclose the details of their mental health history or relive past trauma may not wish to raise the subject of PTSD. Hence, although forensic psychiatrists must always consider that PTSD symptomology is being malingered by a defendant, it may be just as likely that a defendant does not wish to disclose a background of trauma.

PTSD, Mitigation, and the Death Penalty

For an individual facing the death penalty, it is important for the defense team to make a reasonable effort to ascertain whether their client has experienced severe trauma or received a diagnosis of PTSD. Ideally this should be done before the trial to allow mental health evidence to be used in the initial guilt phase. For example, evidence of poor executive function caused by PTSD might negate premeditation, a necessary element to convict for first-degree murder.

If the defendant is found guilty, diagnoses such as PTSD can then also be used as a mitigating factor during the sentencing stage. Mitigation is considered a critical part of capital trials; as a result, the American Bar Association advises the defense in death penalty cases to include a mitigation specialist who can investigate a defendant’s background.⁵

For mitigation on the basis of a mental disorder or a defendant’s background, Liebman and Shephard⁶ analyzed how federal and state judicial decisions have spelled out mitigating circumstances:whether the offender’s suffering evidences expiation or inspires compassion; whether the offender’s cognitive and/or volitional impairment at the time he committed the crime affected his responsibility for his actions, and thereby diminished society’s need for revenge; whether the offender, subjectively analyzed, was less affected than the mentally normal offender by the deterrent threat of capital punishment at the time he committed the crime; and whether the exemplary value of capitally punishing the offender, as objectively perceived by reasonable persons, would be attenuated by the difficulty those persons would have identifying with the executed offender (Ref. 6, p 818).

The U.S. Supreme Court has recognized the importance of mitigation in capital cases. In the 2003 case of Wiggins v. Smith,⁷the U.S. Supreme Court held that trial counsel’s inadequate investigation of Mr. Wiggins’ background in preparation for a mitigation case violated the Sixth Amendment. In 2005’s Rompilla v. Beard, ⁸ the U.S. Supreme Court similarly ruled that failure to investigate and discover mitigating evidence at the sentencing phase was ineffective assistance of counsel. In Rompilla, the defendant’s contributions to the mitigation investigation were deemed “minimal” and “there were times when Rompilla was even actively obstructive by sending counsel off on false leads” (Rompilla, p 381). Nevertheless, his counsel was found ineffective by the Court for failing to examine a file on Mr. Rompilla’s prior conviction for rape and assault, which also contained mitigating evidence that no other source had described.

Additionally, the Court held in Lockett v. Ohio that all mitigating factors should be considered and may not be limited to a list of factors.⁹ In another case, Skipper v. South Carolina, the Court held that mitigating evidence cannot be limited to the pre-offense time frame.¹⁰ A mental health diagnosis like PTSD clearly fits into the expansive scope of mitigation evidence.

PTSD and Capital Postconviction Appeals

For a defendant whose severe trauma or PTSD was not considered during the penalty phase of the trial, it may be raised during the appeals process, albeit with difficulty. It is well recognized that the capital appeals process is thorough to guarantee individuals on death row are accorded due process.¹¹ Of the states authorizing the death penalty, practically all mandate appellate review of all death sentences regardless of the defendant’s wishes.¹¹ Without such extensive review, society risks putting to death people who do not deserve such punishment or may in fact be innocent.¹¹ The capital appeals process affords individuals further review of their background, providing the opportunity to present information about their life history (e.g., trauma) that may have changed the outcome of their sentencing.

The capital appeals process consists of the direct appeal, state postconviction appeal, and the final stage of federal habeas corpus review.¹² While review of these processes is beyond the scope of this article, federal habeas corpus law warrants brief discussion as it pertains to the cases discussed in this essay.

Congress explicitly authorized habeas relief to state prisoners if they were held in custody in violation of federal law. Because of this, federal habeas corpus is the final stage of the appeals process for capital defendants. In 1996, Congress narrowed the writ of habeas corpus used to challenge criminal convictions through the passage of the Antiterrorism and Effective Death Penalty Act (AEDPA).¹³ AEDPA created a statute of limitations for habeas corpus cases and placed extremely stringent restrictions on a habeas petitioner’s ability to file a second (or subsequent) habeas petition.¹⁴ It also limited the circumstances under which a federal court can grant the writ of habeas corpus. Federal judges are unable to grant relief unless the state’s conviction was contrary to clearly established federal law or an unreasonable determination of the facts in light of the evidence.¹³

Ineffective Assistance of Counsel

In the capital appeals process, one of the most common concerns raised is ineffective assistance of counsel. Failure to investigate and present evidence of PTSD would fall under this rubric. The two-prong test for ineffective assistance of counsel was established in the landmark Supreme Court case of Strickland v. Washington:¹⁵First, the defendant must show that counsel’s performance was deficient. This requires showing that counsel made errors so serious that counsel was not functioning as the “counsel” guaranteed the defendant by the Sixth Amendment. Second, the defendant must show that the deficient performance prejudiced the defense. This requires showing that counsel’s errors were so serious as to deprive the defendant of a fair trial, a trial whose result is reliable (Ref. 16, p 687).

Therefore, to succeed on an ineffective assistance claim, a convicted petitioner must prove both that counsel was seriously deficient and that this deficiency caused prejudice that calls into question a trial’s reliability (i.e., that the trial could have turned out differently). Since the Strickland ruling, American courts have consistently applied this test.

Porter v. McCollum

The November 2009 case of Porter v. McCollum¹⁶ built upon Wiggins and Rompilla, ruling in favor of a petitioner who alleged failure to investigate or present mitigation evidence of PTSD. George Porter was a decorated Korean War Army veteran convicted of two counts of first-degree murder. In July 1986, he killed his ex-girlfriend and her boyfriend. After representing himself initially, he later pled guilty with standby counsel’s assistance and was sentenced to death.

He then filed a petition for postconviction relief in state court on the basis of his legal counsel’s failure to investigate and present appropriate mitigating evidence. The state court hearing revealed a difficult childhood, trauma suffered during his military service in Korea, and longstanding struggles with substance abuse and mental health. Mr. Porter’s siblings recounted repetitive instances of physical abuse against him and their mother, including an episode in which Mr. Porter’s father attempted to shoot him. While serving in the Army during the Korean War, Mr. Porter’s unit engaged in two major battles with near-total sleep and food deprivation, with heavy casualties. A commander described battles Mr. Porter had been in as “trying, horrifying experiences” (Porter, p 35).

Following his military service, Mr. Porter began to suffer symptoms consistent with PTSD. He endured nightmares, engaged in repeated physical altercations, and underwent psychological assessments that suggested he had experienced brain changes that predisposed him to increasingly impulsive and violent behavior.

During his state habeas proceedings, a neuropsychology expert who examined Mr. Porter testified that he met two statutory mitigating circumstances at the time of the murders: his ability to conform his conduct to the law was impaired, and he had extreme mental or emotional disturbance. Nonetheless, the lower court habeas judge found that Mr. Porter had failed to establish any statutory mitigating circumstances, discredited his childhood trauma due to the time latency between his abuse as a youth and the murders he committed, and rendered his military service as inconsequential to his crimes. Eventually, this claim made its way to the U.S. Supreme Court.

The U.S. Supreme Court reviewed Mr. Porter’s claim of ineffective assistance under the standard set forth in Strickland v. Washington. The Court found that Mr. Porter’s counsel was deficient to the point where both prongs of the Strickland test were met. With regard to the first question of whether counsel’s performance was inadequate, the Court noted that the lawyer “did not obtain any of Porter’s school, medical, or military service records or interview any members of Porter’s family” (Porter, p 39). This failure prevented other avenues of defense such as “mental health” (Porter, p 40).

Looking to the second prong of the Strickland test, the Court held that Mr. Porter was prejudiced by this poor defense. Had defense counsel followed up on his background, a case could have presented that showed: “(1) Porter’s heroic military service in two of the most critical—and horrific—battles of the Korean War, (2) his struggles to regain normality upon his return from war, (3) his childhood history of physical abuse, and (4) his brain abnormality, difficulty reading and writing, and limited schooling” (Porter, p 41).

Methods

This article reviews a body of case law identified through a systematic review using the legal databases Westlaw and Casetext. These databases were searched for federal appellate cases from 2010 through 2020. Porter was chosen as a starting point because it was the first identified U.S. Supreme Court case to apply the holdings of Wiggins (2003) and Rompilla (2005) to an ineffective assistance case on the basis of failure to investigate or present PTSD. The search was restricted to capital cases where the appellant claimed ineffective assistance of counsel because evidence of a diagnosis of PTSD or aspects of a history of trauma were not presented at sentencing.

Results

Our search yielded 23 total cases that met inclusion criteria, 22 from federal circuit courts of appeal and one from the U.S. Supreme Court. The identified cases are listed in Table 1 and Table 2. Only three cases (13%) ruled in favor of the petitioner, while the other 20 (87%) ruled for the government.

Cases Decided against Petitioner

The majority of cases identified ruled against the petitioner, finding that the Strickland test for ineffective assistance was not met. Some cases based their decision on Strickland’s first prong, finding that counsel’s work was not deficient. This was seen in cases like Nelson v. Davis and Anderson v. Secretary, Florida Department of Corrections.^23,39 In other cases, the second prong of the Strickland test, prejudice, disfavored the petitioner (e.g., Jones v. GDCP Warden).³⁶ Some cases, like Pike v. Gross, based their holdings on both prongs, finding neither error nor prejudice.²⁶

Cases Decided for Petitioner

In the three cases decided for the petitioner, a small minority of the cases reviewed (13%), the petitioners share substantial histories of privation and trauma. Additionally, the courts identified specific ways in which trial counsel had been deficient.

Andrews v. Davis

Andrews v. Davis is similar to Porter in terms of the evidence not submitted. Mr. Andrews grew up in a segregated Alabama Industrial School for Negro Children, where he was subject to “beatings, brutality, inadequate conditions and sexual predators.” (Andrews, p 1006, internal quotes omitted). The sentencing jury did not know this, however. A psychiatrist opined that Mr. Andrews had PTSD and organic brain impairment.¹⁸ No psychological workup was performed prior to the penalty phase of the original trial.

Applying Strickland, the court found counsel’s performance deficient. It noted “[w]hat little investigation did occur consisted of just three elements: (1) reviewing files at the courthouse in Mobile; (2) speaking with Andrews’s mother during a layover in an airport; and (3) driving around Mobile” (Andrews, p 1109).

Likewise, the Andrews court found prejudice due to counsel’s poor performance:[h]ad the jury heard that Andrews—at an “extremely vulnerable and sensitive age”—was subjected to brutal, inhumane, and degrading abuse by his state custodians at a segregated “penal colony” for African American children in Alabama in the 1960s . . . there is a reasonable probability that at least one juror would have been swayed to exercise mercy and spare Andrews's life (Andrews, p 1117, internal citation omitted).

Andrus v. Texas

In June 2020, the U.S. Supreme Court found trial counsel ineffective in Andrus v. Texas.¹⁹ Petitioner Terence Andrus was convicted for two murders and sentenced to death. As a child, he was raised by a drug-addicted mother and forced to care for his siblings. He became involved in crime and spent time in juvenile detention, where he was administered medication, sent to solitary confinement, and became immersed in gang culture.

This information, however, did not make its way to the jury. During his trial, Mr. Andrus’s attorney declined to offer an opening statement and rested immediately after the prosecution had rested its case against him. In its review, the Court found that trial counsel barely knew the witnesses he called in Mr. Andrus’s defense.

Trial counsel represented that Mr. Andrus had no mental health problems. Yet a mitigation expert subsequently prepared a report stating that Mr. Andrus “had been diagnosed with affective psychosis, a mental health condition marked by symptoms such as depression, mood lability, and emotional dysregulation” (Andrus, p 1882, internal quotes omitted). A clinical psychologist also testified at the habeas hearing that Mr. Andrus experienced “very pronounced trauma and posttraumatic stress disorder symptoms from, among other things, severe neglect and exposure to domestic violence, substance abuse, and death in his childhood” (Andrus, p 1882, internal quotes omitted).

Doe v. Ayers.

Petitioner Mr. Doe (a pseudonym) experienced multiple rapes during a prior incarceration and had a history of childhood trauma, including being neglected by his mother and beaten by his uncle. These experiences were not presented during the sentencing phase of his murder trial. The court noted that the transcript for the mitigation phase of the trial was only 35 pages (trial transcripts are frequently indented and double-spaced). Ruling for the petitioner, the Ninth Circuit found that the prison rapes, mental illness (including PTSD), and evidence of childhood trauma should have been introduced at mitigation.

Discussion

On the basis of the cases reviewed, it is difficult to prove ineffective assistance of counsel for failure to investigate trauma. This conclusion emphasizes the importance of a thorough evaluation of a defendant’s mental health and trauma history prior to trial, which may be the only venue to present that information. In our discussion, we consider the role of and interaction between the forensic psychiatrist and mitigation specialist in building the mitigation cases of defendants with a history of PTSD or severe trauma.

Case Law Analysis

In the intervening decade since Porter, our research indicates that courts have been reluctant to expand scrutiny of trial counsel’s investigations into mental health. When reviewing ineffective assistance claims, federal courts of appeals seem willing to accept a low bar for mental health investigations, even if they are rushed or contradicted by later examiners after conviction. Moreover, courts also seem skeptical that mental health evidence, even if it should have been looked into, would have made a difference in capital mitigation cases.

That said, the core holding of Porter, that very poor investigation of major trauma is ineffective assistance, remains good law. When trial counsel does minimal investigating of grave early trauma and its mental health ramifications, courts have followed Porter’s lead and declared trial counsel ineffective. Read together, the reviewed cases paint a generally unfriendly landscape for capital habeas petitioners who base their claim around undiscovered mental health concerns like PTSD. At the same time, courts will take action against blatantly substandard performance.

A lesson from these cases is that it behooves capital defendants to research and present mitigation evidence of PTSD, trauma, and other mental illness at the trial stage. Appellate courts are much less likely to provide relief via habeas corpus after conviction and sentencing. This means that the trial defense attorney needs to be thorough in investigating and presenting mitigation evidence.

The need for a thorough investigation is especially critical to mitigation given the prosecution’s ambiguous obligation to disclose potentially favorable information. Prosecutors have a duty under Brady v. Maryland⁴⁰ to disclose favorable or exculpatory evidence. This standard is difficult to apply to mitigation, however, given the subjectiveness of what information might conjure sympathy. Thus, the defense team cannot depend on the prosecution to disclose favorable mitigating information, as they would be obligated to do during the guilt phase of the trial.

Another lesson is that an expert opinion from a forensic psychiatrist might assist the courts in understanding PTSD and trauma. Rhoades v. Henry, which found for the state, is instructive on two points. First, expert opinion should be based on standardized diagnostic criteria. In Rhoades, an expert psychiatrist and neurologist opined that Mr. Rhoades’ history of trauma was “suggestive” of PTSD although the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria were not met (Rhoades, p 1049). The court took notice of this distinction, finding that potential mitigating value was lessened without a diagnosis. Thus, forensic psychiatrists should take care to ground their analysis in standard diagnostic criteria. For example, in Porter, the expert testified that Mr. Porter “easily” met PTSD criteria (Porter, p 44 fn 4).

Additionally, an expert can help teach lay people about PTSD and its diverse symptomology. In Rhoades, the court noted “there also is no suggestion that Rhoades kidnapped, tried to rape, or murdered [the victim] while in any kind of PTSD-induced dissociative state” (Rhoades, p 1050). The court seemed to think that dissociation is the only possible way that trauma might influence a defendant’s actions. Forensic psychiatrists and other experts can share other ways that PTSD might influence behavior such as hyperarousal, negative symptoms, and triggering. All of these could influence a defendant’s actions and support a mitigating case.

The Importance of Mitigation Specialists

Analysis of case law shows that pretrial investigation of mitigation evidence is critical in capital cases. As noted by Stetler, “mitigation is a means of introducing evidence of disability or condition which inspires compassion, but which offers neither justification nor excuse for the capital crime” (Ref. 41, p 261). Because of this, the defendant’s legal team should obtain a deep understanding of the defendant’s lived experience and craft a narrative of the history that can elicit compassion at the sentencing phase. The U.S. Supreme Court emphasized the importance of mitigation in Wiggins v. Smith,⁷ in which they rejected defense counsel’s strategic decision to limit the mitigation investigation.

Conducting such an investigation is no simple task. Mitigation specialists take up this burden and coordinate a thorough investigation into the lives of capital defendants. They “identify issues requiring evaluation by psychologists, psychiatrists, or other medical professionals” (Ref. 41, p 250, internal citation omitted). Furthermore, mitigation specialists also guide the defense team in crafting a thorough, cogent, and persuasive story of the defendant’s life.⁴¹ Indeed, the American Bar Association advises inclusion of a mitigation specialist who can investigate a defendant’s background as it pertains to these mitigating circumstances.⁵

Because of the mitigation specialist’s crucial role in understanding the life history of the defendant, the specialist will orchestrate records collection upon which a mitigation narrative can be developed. For a forensic psychiatrist retained by defense counsel, a diagnosis of PTSD will almost certainly rely in part on the same type of data collected by the mitigation specialists. Matto and colleagues⁴ have outlined data domains to be considered in the forensic evaluation of PTSD, and these domains overlap with records a mitigation specialist is tasked with finding. These include (but are not limited to) medical, educational, employment, incarceration, institutionalization, or military records.

Mitigation specialists also conduct interviews with a range of individuals involved in the life of the client. They may also possess the ability to elicit sensitive information regarding the defendant’s background, whether from the defendant or from someone involved in the defendant’s life. The totality of their duties makes it likely that mitigation specialists are the primary investigators of past emotional, sexual, or physical trauma of defendants.

Defense-retained forensic psychiatrists need to evaluate data domains that overlap with those identified by the mitigation specialist to determine if they fulfill criterion A of a PTSD diagnosis. The importance of evidence that corroborates a history of trauma reported by the defendant cannot be emphasized enough. As noted in some of the above cases (Gissender v. Seaboldt,³⁴ Pike v. Gross²⁶), appeals were denied in part on the basis that courts found trauma reported by the defendants to be uncorroborated by witnesses or past records.

Forensic Experts versus Mitigation Specialists

There are appreciable similarities between the role of the mitigation specialist and that of the forensic psychiatrist. Both are tasked with gathering information regarding the capital defendant’s life history and showing how this informs their understanding of the individual. There may be an advantage in the mitigation specialist’s ability to earn the trust of the defendant.⁴¹ Conversely, a forensic expert ideally maintains an objective or neutral stance toward the defendant.

The clinical experience and knowledge of forensic psychiatrists give them some advantages in building mitigation cases. They might better understand when a defendant’s style of communication may be influenced by a mental health condition. Because of their medical and clinical training, psychiatrists may be better suited than mitigation specialists to gather, interpret, and draw conclusions from medical records. For example, in a case of an individual with a prior medical diagnosis and treatment for PTSD, a psychiatrist could reliably opine on questions of adequacy and duration of pharmacologic treatment, or the relative severity of symptoms on the basis of the level of past medical care received.

A defense-retained expert must be mindful to maintain an unbiased stance. In some cases, the forensic expert may be asked to assume a role beyond the scope of a psychiatric evaluation, such as providing therapeutic interventions. Experts must be careful not to conflate forensic and treatment roles.

While the history gathered by the mitigation specialist may be similar to that gathered by a psychiatrist, the expert may identify events within the defendant’s lifetime that both elicit compassion and were not previously known to the legal team. Defense counsel may find such life events worthy of further investigation.

Although defense counsel may decide whether such investigation is warranted, the decision to limit the mitigation investigation despite a psychiatrist’s findings may be the basis of appeal for a capital defendant. For the forensic psychiatrist, lack of corroboration of any trauma reported by the defendant may undermine the expert’s testimony and the mitigation strategy overall. Although limiting the scope of a mitigation evaluation may be the basis of appeal, a petitioner may be unsuccessful if the court determines that the proposed mitigating mental health evidence would have opened the door to strong aggravating evidence, as in Jones v. GDCP Warden.³⁶

PTSD in the Mitigation Presentation

Forensic psychiatrists may find providing testimony regarding the effects of trauma in the mitigation phase more palatable as they are not tasked with vehemently defending their conclusions, as in criminal responsibility testimony. Again, mitigation is meant to offer neither justification nor excuse for the capital crime but as a basis to shape the jurors’ understanding of the individual.⁴¹ Because of this, there may be increased freedom for an expert to discuss the current state of literature regarding a specific form of trauma, if it is applicable to the defendant. For example, for some of the defendants in the cases we reviewed, pervasive childhood trauma was noted, and an expert could tentatively discuss adverse childhood experiences (ACEs) at sentencing. There is an emerging large body of research around ACEs that correlate childhood trauma with both juvenile and adult criminality.^42,–,44 Thus, routine ACE scores might prove to be a highly useful tool that lends scientific weight to the narrative that a person’s childhood trauma has contributed to worsened life outcomes, with the caveat that correlation does not equal causation.

Concerns about PTSD in Mitigation

While the cases cited in this article point to an increasing awareness by the courts of the effects of trauma on a person’s mental health and culpability in criminal proceedings, there are potential downsides to highlighting PTSD in this manner. Given the highly subjective nature of the symptoms of PTSD, there is a real concern that a focus on the traumatic backgrounds of individuals involved in criminal cases might open the floodgates for nearly every defendant to claim a traumatic history as a reason for leniency. As Matto and colleagues⁴ have noted, from the first appearance of PTSD in the DSM-III to its current iteration in the DSM-5, the definition of what constitutes a traumatic stressor has broadened from an objective standard to a more subjective one, potentially increasing the number of individuals who could qualify for the diagnosis.

Concerns about overuse or exaggeration of traumatic backgrounds are heightened in mitigation more than in criminal responsibility cases because the purpose of mitigation is to elicit a more compassionate view of the defendant and therefore does not even necessitate a formal diagnosis of PTSD. Studies have shown that PTSD criterion A (stressor) events are neither necessary nor sometimes even sufficient to produce PTSD symptoms. Instead, they appear to represent high magnitude stressors that are otherwise indistinct from the full range of stressors that can have an impact on an individual and create risk of psychiatric morbidity.⁴⁵ There is concern, however, that if attention to trauma and PTSD were to be adopted more widely as a mitigating strategy, including in noncapital cases, the mere presence of trauma may come to be seen as synonymous with a diagnosis of PTSD, leading to further abuse of the diagnosis. Unlike the use of the insanity defense, which necessitates the presence of a mental disorder, almost every defendant could lay claim to being the victim of trauma in general due to the highly subjective nature of the experience of trauma.

Another concern is the potential for malingering of PTSD or symptoms of PTSD. As noted, PTSD is a diagnosis that primarily involves subjective symptoms that are difficult to validate objectively in clinical practice. The diagnosis has been criticized because it is thought to rely excessively on clinical judgment and patient report.^46,47 In other words, it is difficult to prove or disprove definitively symptoms such as having nightmares or flashbacks, or persistently avoiding stimuli associated with the trauma. Even the existence of an index traumatic event, which may have occurred years in the past, may be difficult to prove, and corroborating evidence may be difficult to find. Moreover, exposure to a traumatic event does not equate to the development of PTSD. The National Comorbidity Survey, which studied a sample of 5,877 people in the United States, estimated a lifetime prevalence of PTSD to be 7.8 percent despite 61 percent of men and 51 percent of women in the survey reporting being exposed to a traumatic event.⁴⁸ So, while many people will experience trauma in their lifetimes, most will not develop PTSD.

Psychological testing may be useful in detecting or disproving cases of suspected malingering of PTSD. Tests such as the Miller-Forensic Assessment of Symptoms (M-FAST),⁴⁹ the Structured Interview of Reported Symptoms-2 (SIRS-2), ⁵⁰ the Infrequency-Posttraumatic Stress Disorder scale (Fptsd) of the Minnesota Multiphasic Personal Inventory-2 (MMPI-2), ^51,52 and the Personality Assessment Inventory (PAI) ^53,54 all may play a role in differentiating between genuine and malingered cases of PTSD, but none are definitive in themselves.

Toward a Trauma-Informed Jurisprudence

By educating courts about the applied science of PTSD, forensic psychiatrists can help advance the U.S. judicial system toward a jurisprudence that both recognizes the effects of trauma and appropriately accounts for it in terms of criminal liability. In the shorter term, the jurisprudence may evolve to create a standard of care that expects forensic psychiatrists, psychologists, and social workers to take an active role in teaching judges and juries about PTSD at the penalty phase.

In light of the range of effects PTSD can have on a defendant’s liability, counsel who fail to investigate and mount a strategy that accounts for PTSD would be ineffective, potentially giving convicted offenders a second chance through re-trial or re-sentencing (i.e., even when a convicted offender prevails on an ineffective assistance claim, the remedy is usually re-hearing). Such a standard may have changed the result of many of the cases discussed here by holding counsel to a higher standard in investigating and advocating for leniency on the basis of trauma.

In the longer term, it is possible that advocacy could lead to the categorical barring of execution of groups or subgroups affected by PTSD or severe trauma. This would be through an Eighth Amendment argument similar to that advocated by the U.S. Supreme Court in Roper v. Simmons⁵⁵ and Atkins v. Virginia.⁵⁶ Giardino⁵⁷ has argued that veterans who have a diagnosis of service-related PTSD and traumatic brain injury should receive a categorical exemption from the death penalty. Wortzel and Arciniegas⁵⁸ in turn have suggested Giardino’s proposed categorical exclusion is quite broad but considered it to be potentially worthwhile to avoid the injustice of executing a combat veteran with a diagnosis of PTSD or traumatic brain injury at the time of the crime relative to the ability to execute veterans whose crimes are unrelated to military service and injury.

In considering other forms of PTSD, it would be a formidable task for the law to define different groups who have each experienced a specific type of trauma that, in turn, could be categorically barred from receiving the death penalty. This is because, even if trauma is defined at the stage of life in which it occurred (childhood, adolescence, or adulthood), the nature of the trauma (physical, sexual, emotional, or neglect), and its duration (prolonged versus a specific point in time), the symptom clusters of PTSD are inconsistent among different populations. For example, Thorp and colleagues⁵⁹ reported that the prevalence of full-threshold PTSD appeared to be lower among older adults compared with the general population. Additionally, as noted earlier, many individuals experience horrific suffering yet do not go on to experience PTSD symptomology. It is also well recognized that childhood trauma may contribute to the development of personality disorders,⁶⁰ such as borderline and antisocial personality disorders, and PTSD symptoms can be difficult to differentiate from traits of these disorders (as noted in Kemp v. Kelley²⁸), particularly if the diagnosis is Complex PTSD, a more severe variant.⁶¹

Conclusion

We arrive at a similar dilemma noted by Wortzel and Arciniegas,⁵⁸ who considered the American Law Institute’s (ALI) study of the application of the death penalty in 2009.⁶² The ALI found the capital punishment system incapable of reconciling the twin goals of individual determinations regarding who should be executed and the need for systemic justice.⁶² In our analysis, there was not a systemic approach to the evaluation of trauma in the defendants’ backgrounds. The capital appeals process offered a mechanism by which further mitigating evidence regarding trauma could be introduced and weighed, but, on the basis of our findings, at the federal appellate court level defendants are only likely to receive relief in the most egregious instances of counsel ineffectiveness.

In 2008, after many of the original trials of these defendants, the American Bar Association released the Supplementary Guidelines for the Mitigation Function of Defense Teams in Death Penalty Cases to create performance standards.⁶³ These standards instruct the capital defense team to obtain, understand, and analyze all documentary and anecdotal information relevant to the client’s life information.⁶³ The guidelines enumerate all domains relevant to an individual’s life history, including but not limited to mental health history, history of maltreatment and neglect, trauma history, military experience, family history, and genetic disorders and vulnerabilities.⁶³

Since the publication of these guidelines, it remains unclear whether their recommendations are aspirational or essential. Andrus v. Texas would suggest the former, although Mr. Andrus’s case proceeded to trial around the time the guidelines were published.

Because of the considerable tasks defense teams face fulfilling these recommendations, the breadth of data collection and interpretation required of the defense teams for capital defendants may outweigh systemically the resources allotted to them, even with the assistance of a mitigation specialist.

Looking forward, one recommendation to strike a greater balance would to mandate a methodical approach to reviewing the trauma domains outlined in the guidelines. A second recommendation would be for courts to appoint consultants more readily to defense teams to interpret potentially mitigating evidence. In the case of defendants with suspected PTSD, a solution could be appointing a forensic psychiatrist or other mental health clinician to collaborate with defense counsel early in the mitigation investigation. Regardless of the feasibility of these recommendations, it is our belief that achieving systemic justice for capital defendants lies in ensuring an immensely thorough and thoughtful mitigation investigation regarding trauma history. Without this, concerns regarding the arbitrariness of the death penalty will persist.

Posttraumatic stress disorder (PTSD) is sometimes used as a defense in criminal cases. However, establishing a clear link between PTSD and criminal behavior can be difficult. This is because a connection must be shown between the traumatic event and the mental health symptoms, and then between those symptoms and the criminal act itself. Even when PTSD does not fully excuse a crime, its presence can be a reason for a lighter sentence.

Courts sometimes view PTSD claims with doubt, worrying that individuals might fake symptoms to avoid punishment. On the other hand, some defendants with genuine trauma may not want to reveal their mental health history or relive past painful events. Therefore, while legal mental health experts must consider if symptoms are being faked, it is equally possible that a defendant simply prefers not to disclose their traumatic past.

PTSD, Mitigation, and the Death Penalty

When a defendant faces the death penalty, the defense team should thoroughly investigate whether the client has experienced severe trauma or has a PTSD diagnosis. Ideally, this occurs before trial so mental health evidence can influence the initial guilt phase, for example, by showing that poor decision-making due to PTSD might negate premeditation for a murder charge.

If found guilty, diagnoses like PTSD can serve as a mitigating factor during sentencing, potentially leading to a lesser punishment. Mitigation is crucial in capital trials, leading the American Bar Association to recommend that defense teams include a mitigation specialist. This specialist investigates a defendant's background to uncover circumstances that might inspire compassion or show diminished responsibility.

The U.S. Supreme Court has repeatedly affirmed the importance of mitigation in capital cases. Rulings like Wiggins v. Smith (2003) and Rompilla v. Beard (2005) found that a trial lawyer's failure to adequately investigate a defendant's background for mitigating evidence, including mental health issues, can violate the Sixth Amendment right to effective legal assistance. The Court has also stated that all mitigating factors should be considered and that such evidence is not limited to events before the crime. A mental health diagnosis like PTSD clearly fits within this broad scope of mitigating evidence.

PTSD and Capital Postconviction Appeals

For defendants whose severe trauma or PTSD was not considered during their trial, it can be raised during the appeals process, though this is challenging. The capital appeals process, which includes direct appeals, state postconviction appeals, and federal habeas corpus review, aims to ensure due process and prevent unjust executions. This process provides an opportunity to present new information about a defendant's life history, such as trauma, which might have changed the sentencing outcome.

Federal habeas corpus review is the final stage of appeals for capital defendants, allowing challenges based on violations of federal law. However, laws like the Antiterrorism and Effective Death Penalty Act (AEDPA) of 1996 have significantly restricted the ability of defendants to file habeas corpus petitions, making it harder to introduce new evidence or claims of error.

Ineffective Assistance of Counsel

One of the most frequent concerns raised in capital appeals is ineffective assistance of counsel, which includes a lawyer's failure to investigate and present evidence of PTSD. The standard for proving ineffective assistance comes from the Supreme Court case Strickland v. Washington. This test has two parts: first, the defendant must show that their lawyer's performance was seriously flawed, meaning the lawyer made errors so severe they were not acting as a proper legal counsel. Second, the defendant must show that these errors harmed the defense so much that it likely led to an unfair or unreliable trial outcome. American courts consistently apply this two-part test.

Porter v. McCollum

The 2009 Supreme Court case Porter v. McCollum reinforced the importance of investigating mitigation evidence, specifically related to PTSD. George Porter, a decorated Korean War veteran, was convicted of murder. His legal counsel failed to investigate his difficult childhood, severe trauma during military service, and long-standing struggles with substance use and mental health symptoms consistent with PTSD. The Supreme Court found that his counsel's performance was deficient under the Strickland test because they did not obtain relevant records or interview family members. The Court also determined that this poor defense prejudiced Mr. Porter, as a thorough investigation could have presented a compelling case about his war service, post-war struggles, childhood abuse, and brain abnormality, potentially altering his sentence.

Methods

This article reviewed federal appellate cases from 2010 to 2020, identified using legal databases. The search focused on capital cases where defendants claimed ineffective assistance of counsel because evidence of a PTSD diagnosis or trauma history was not presented during sentencing. Porter v. McCollum was used as a starting point because it was the first Supreme Court case to apply previous rulings to ineffective assistance claims involving uninvestigated PTSD or trauma.

Results

The review found 23 cases that met the criteria: 22 from federal circuit courts and one from the U.S. Supreme Court. The majority of these cases (87%, or 20 cases) ruled against the defendant, while only three cases (13%) ruled in favor of the defendant.

Cases Decided against Petitioner

In most cases, courts ruled against the defendant, determining that the Strickland test for ineffective assistance was not met. Some decisions concluded that the lawyer's work was not deficient, while others found that even if there were errors, they did not cause enough harm to change the outcome of the trial.

Cases Decided for Petitioner

The three cases decided in favor of the defendant involved individuals with significant histories of hardship and trauma. In these cases, the courts clearly identified specific failings by the trial lawyers. For example, in Andrews v. Davis, the defendant, who suffered brutal abuse in a segregated institution, did not receive a psychological evaluation before sentencing, and his counsel conducted minimal investigation. In Andrus v. Texas, the defendant's childhood trauma and mental health issues were ignored, and his lawyer presented a weak defense. Similarly, in Doe v. Ayers, the court ruled that evidence of the defendant's prison rapes, mental illness (including PTSD), and childhood trauma should have been presented during sentencing.

Discussion

Based on the reviewed cases, it is often challenging to prove ineffective assistance of counsel due to a failure to investigate trauma. Courts appear hesitant to broaden their scrutiny of lawyers' mental health investigations and are often skeptical that unpresented mental health evidence would have changed the outcome in capital mitigation cases. This underscores the critical importance of thoroughly evaluating a defendant's mental health and trauma history before trial, as this may be the only effective opportunity to present such information.

Forensic psychiatrists can significantly assist courts in understanding PTSD and trauma. Their expert opinions should be based on standardized diagnostic criteria. Experts can also educate juries about the diverse symptoms of PTSD, explaining how trauma can influence behavior in various ways beyond just dissociation, such as through heightened arousal or negative emotional states.

The Importance of Mitigation Specialists

Mitigation aims to introduce evidence of a defendant's disability or condition to inspire compassion, not to justify or excuse a crime. For this reason, the legal team needs a deep understanding of the defendant's life to create a narrative that can elicit sympathy during sentencing. Mitigation specialists are crucial in this process, conducting thorough investigations into defendants' lives, identifying issues for mental health evaluations, and gathering extensive records (medical, educational, military, etc.). This data is essential for forensic psychiatrists when diagnosing PTSD. It is also vital that trauma reported by defendants is corroborated by witnesses or records, as courts often deny appeals when such evidence is lacking.

Forensic Experts versus Mitigation Specialists

Both mitigation specialists and forensic psychiatrists gather information about a capital defendant's life history to inform an understanding of the individual. Mitigation specialists may more easily build trust with a defendant, while forensic experts ideally maintain an objective stance. Psychiatrists, with their medical and clinical training, are uniquely suited to gather, interpret, and draw conclusions from medical records. They can assess the adequacy of past treatment for PTSD or the severity of symptoms based on clinical history. Expert findings can also lead defense counsel to further investigate specific life events. However, a lack of corroborating evidence for reported trauma can weaken an expert's testimony and the overall mitigation strategy.

PTSD in the Mitigation Presentation

Forensic psychiatrists often find testifying about the effects of trauma in the mitigation phase more comfortable, as their role is to inform rather than vehemently defend their conclusions. This allows experts to discuss current research on specific types of trauma, such as adverse childhood experiences (ACEs), and their correlation with later criminality. This scientific context can add weight to the argument that a person's childhood trauma contributed to their life outcomes.

Concerns about PTSD in Mitigation

While courts are increasingly aware of trauma's effects, concerns exist about over-emphasizing PTSD in criminal cases. Given the subjective nature of PTSD symptoms and the broadening definition of a traumatic stressor, some worry that focusing on traumatic backgrounds could lead to almost every defendant claiming trauma for leniency. There are also concerns about malingering, where defendants might fake or exaggerate PTSD symptoms, which are often difficult to objectively verify. Psychological tests can help detect malingering, but trauma exposure does not automatically result in PTSD, as many people experience trauma without developing the disorder.

Toward a Trauma-Informed Jurisprudence

By educating courts on the science of PTSD, forensic psychiatrists can help the U.S. judicial system move toward a more trauma-informed approach to criminal liability. In the short term, this could mean that experts are expected to actively teach judges and juries about PTSD during sentencing, raising the standard for legal counsel. Longer term, some argue for categorically exempting certain groups affected by PTSD or severe trauma, such as combat veterans, from the death penalty. However, defining specific groups for such an exemption is complex, given the varied nature of trauma, its timing, and inconsistent PTSD symptom clusters across different populations. For example, childhood trauma can contribute to personality disorders, making PTSD symptoms difficult to differentiate.

Conclusion

The justice system faces a persistent challenge in balancing individual sentencing needs with the goal of systemic fairness, particularly regarding trauma evaluation in capital cases. There is currently no consistent approach to assessing trauma in defendants' backgrounds. Appeals based on inadequate trauma investigation at the federal appellate level succeed only in the most severe instances of legal incompetence.

In 2008, the American Bar Association issued guidelines for defense teams in death penalty cases, outlining comprehensive standards for investigating a client's life history, including mental health, trauma, and family background. However, it remains unclear whether these guidelines are merely aspirational or considered essential. Fulfilling these recommendations requires substantial resources, which may exceed what is typically allotted to defense teams, even with the aid of mitigation specialists.

To achieve greater balance and systemic justice, one recommendation is to mandate a structured approach to reviewing all trauma-related information outlined in the guidelines. Another is for courts to more readily appoint consultants, such as forensic psychiatrists or other mental health clinicians, to defense teams early in the mitigation investigation. Without a thorough and thoughtful investigation of trauma history, concerns about the arbitrary application of the death penalty will continue.

Posttraumatic stress disorder (PTSD) has been presented in criminal defense cases in various ways. It can be challenging to prove a clear link between PTSD and criminal behavior. This is because a connection must be shown between the traumatic event and the mental health symptoms, and then between those symptoms and the crime itself. One common use for a PTSD diagnosis in criminal defense is as a factor that can reduce the severity of a sentence. Even if PTSD does not completely remove a person's legal responsibility for a crime, the level of trauma and suffering experienced due to PTSD symptoms might lead to a more lenient sentence.

Courts sometimes view PTSD claims with doubt, largely due to concerns that defendants might pretend to have the condition to avoid punishment. However, it is also possible that individuals with PTSD may not want to admit to the diagnosis or share painful details of their past trauma. Therefore, while mental health experts in legal cases must consider if a defendant is faking PTSD symptoms, it is equally possible that a defendant simply does not want to talk about their traumatic experiences.

PTSD, Mitigation, and the Death Penalty

For a person facing the death penalty, the defense team should make a serious effort to find out if their client has experienced severe trauma or has a PTSD diagnosis. Ideally, this investigation should happen before the trial, so mental health evidence can be used in the initial stage when guilt is decided. For example, evidence of poor decision-making skills caused by PTSD could suggest that a defendant did not plan a crime, which is often needed for a first-degree murder conviction.

If a defendant is found guilty, diagnoses like PTSD can then be used to argue for a less severe sentence. Because mitigation, or factors that lessen the severity of a crime, is crucial in death penalty trials, legal organizations recommend that defense teams include a mitigation specialist. This specialist investigates the defendant's background to uncover such factors.

Legal rulings have clarified what counts as mitigating circumstances in capital cases. These include whether a person's suffering inspires compassion, if their mental state at the time of the crime affected their responsibility, whether they were less deterred by the threat of capital punishment, and if executing them would be seen as less just by others.

The U.S. Supreme Court has repeatedly emphasized the importance of mitigation in capital cases. In one case, the Court found that a lawyer's inadequate investigation into a client's background for mitigation purposes violated the client's constitutional rights. Another ruling similarly stated that failing to investigate and find mitigating evidence during the sentencing phase amounted to ineffective legal help, even if the defendant had been uncooperative. Additionally, the Court has ruled that all mitigating factors must be considered, not just a limited list, and that such evidence cannot be restricted to only events before the crime. A mental health diagnosis like PTSD clearly fits within this broad definition of mitigating evidence.

PTSD and Capital Postconviction Appeals

If a defendant's severe trauma or PTSD was not considered during the initial sentencing for a death penalty case, it can be raised during the appeals process, though this is difficult. The capital appeals process is designed to be thorough, ensuring that those on death row receive fair legal treatment. Most states with the death penalty require appellate review of all death sentences, even if the defendant does not want it. This extensive review helps prevent the execution of individuals who may not deserve such punishment or who might even be innocent. The appeals process allows for further review of a person's background, offering a chance to present life history information, such as trauma, that could have changed their sentence.

The capital appeals process includes direct appeals, state postconviction appeals, and finally, federal habeas corpus review. Federal habeas corpus allows state prisoners to challenge their custody if it violates federal law, making it the final stage for death penalty defendants. In 1996, Congress passed a law that significantly limited the use of habeas corpus, creating strict deadlines and rules for filing appeals. This law also restricted the conditions under which federal courts can grant relief, requiring that a state's conviction was clearly against federal law or based on an unreasonable review of the facts.

Ineffective Assistance of Counsel

In the capital appeals process, a common concern raised is that a defendant received ineffective legal assistance. Failing to investigate and present evidence of PTSD would fall under this category. The standard for proving ineffective assistance of counsel was set by the Supreme Court. First, a defendant must show that their lawyer's performance was so poor that it failed to meet the standard of legal representation guaranteed by the Constitution. Second, the defendant must show that this poor performance harmed their defense, meaning the errors were serious enough to make the trial unfair and unreliable, and the outcome might have been different. Therefore, a convicted person must prove both significant deficiencies in their lawyer's work and that these deficiencies caused prejudice, calling the trial's fairness into question.

Porter v. McCollum

In 2009, the Supreme Court case of Porter v. McCollum expanded on earlier rulings, siding with a petitioner who claimed his lawyer failed to investigate or present mitigating evidence of PTSD. George Porter, a decorated Korean War veteran, was convicted of two murders. After initially representing himself, he later pleaded guilty and was sentenced to death.

He then sought postconviction relief, arguing that his legal counsel had failed to investigate and present appropriate mitigating evidence. A state court hearing revealed Mr. Porter's difficult childhood, severe trauma from his military service in Korea, and long-standing issues with substance use and mental health. His siblings described repeated physical abuse from their father, including an incident where his father tried to shoot him. During the Korean War, Mr. Porter's unit endured two major battles with extreme sleep and food deprivation and heavy casualties. A commander described these battles as "trying, horrifying experiences."

After his military service, Mr. Porter began suffering symptoms consistent with PTSD, including nightmares and frequent physical fights. Psychological evaluations suggested he had brain changes that made him more prone to impulsive and violent behavior.

During his appeals, a neuropsychology expert testified that Mr. Porter met two legal mitigating circumstances at the time of the murders: his ability to follow the law was impaired, and he experienced extreme mental or emotional disturbance. However, the lower court judge found no statutory mitigating circumstances, dismissed his childhood trauma due to the time gap between the abuse and the murders, and deemed his military service irrelevant to his crimes. This case eventually reached the U.S. Supreme Court.

The Supreme Court reviewed Mr. Porter's claim of ineffective assistance, applying the established legal test. The Court found that Mr. Porter's counsel was deficient in two ways. First, the Court noted that his lawyer "did not obtain any of Porter’s school, medical, or military service records or interview any members of Porter’s family." This failure prevented exploring other defense avenues, such as mental health issues.

Second, the Court concluded that Mr. Porter was harmed by this poor defense. Had his lawyer properly investigated his background, a case could have been presented showing: his heroic military service in critical and horrific Korean War battles, his struggles to return to normal life after the war, his history of childhood physical abuse, and his brain abnormality, literacy difficulties, and limited schooling.

Methods

This article reviewed legal cases identified through a systematic search using legal databases. The search focused on federal appellate cases from 2010 to 2020. The Porter case was used as a starting point because it was the first Supreme Court case to apply earlier rulings to an ineffective assistance claim based on a failure to investigate or present PTSD evidence. The search was limited to capital cases where the defendant claimed ineffective assistance of counsel because evidence of a PTSD diagnosis or trauma history was not presented during sentencing.

Results

The search identified 23 cases that met the criteria, including 22 from federal circuit courts of appeal and one from the U.S. Supreme Court. Of these, only three cases (13 percent) ruled in favor of the petitioner (the defendant making the appeal), while the other 20 (87 percent) ruled for the government.

Cases Decided against Petitioner

Most of the identified cases ruled against the petitioner, determining that the legal standard for ineffective assistance was not met. Some decisions were based on the finding that the lawyer's work was not deficient. In other cases, the court found that the defendant was not harmed by the lawyer's performance. Some cases based their rulings on both grounds, finding neither error nor harm.

Cases Decided for Petitioner

In the three cases where the petitioner won, which was a small minority, the defendants had significant histories of hardship and trauma. Additionally, the courts clearly identified specific ways in which the trial lawyer had performed inadequately.

Andrews v. Davis was similar to the Porter case in terms of the unsubmitted evidence. Mr. Andrews grew up in a segregated industrial school for Black children in Alabama, where he suffered from "beatings, brutality, inadequate conditions, and sexual predators." However, the sentencing jury never heard this information. A psychiatrist believed Mr. Andrews had PTSD and organic brain damage, but no psychological evaluation was done before the sentencing phase of the original trial. The court found the lawyer's performance deficient, noting that the investigation involved only reviewing court files, speaking briefly with Mr. Andrews's mother at an airport, and driving around the city. The court also found harm due to the poor performance, stating that if the jury had known about the brutal abuse Mr. Andrews experienced at a vulnerable age, there was a reasonable chance that at least one juror would have shown mercy and spared his life.

In June 2020, the Supreme Court also found a trial lawyer ineffective in Andrus v. Texas. Petitioner Terence Andrus was convicted of two murders and sentenced to death. As a child, he was raised by a drug-addicted mother and forced to care for his siblings. He became involved in crime and spent time in juvenile detention, where he was medicated, placed in solitary confinement, and exposed to gang culture. This crucial information, however, was not presented to the jury. During his trial, Mr. Andrus’s attorney declined to give an opening statement and rested his case immediately after the prosecution. The Court found that the trial lawyer barely knew the witnesses called for Mr. Andrus's defense. The lawyer had stated that Mr. Andrus had no mental health problems, but a later expert report diagnosed him with "affective psychosis," and a clinical psychologist testified that he experienced "very pronounced trauma and posttraumatic stress disorder symptoms" from severe neglect and exposure to violence and death in his childhood.

In Doe v. Ayers, the petitioner, Mr. Doe (a pseudonym), had been raped multiple times during a previous incarceration and had a history of childhood trauma, including neglect and abuse. These experiences were not presented during the sentencing phase of his murder trial. The court noted that the transcript for the mitigation phase was only 35 pages long. Ruling for the petitioner, the Ninth Circuit Court of Appeals found that the prison rapes, mental illness (including PTSD), and evidence of childhood trauma should have been introduced as mitigating factors.

Discussion

Based on the cases reviewed, it is challenging to prove ineffective assistance of counsel due to a failure to investigate trauma. This highlights the importance of thoroughly evaluating a defendant's mental health and trauma history before trial, as this may be the only opportunity to present such information. This discussion explores the roles of forensic psychiatrists and mitigation specialists in building mitigation cases for defendants with PTSD or severe trauma.

Case Law Analysis

In the decade since the Porter case, research indicates that courts have been hesitant to increase their scrutiny of lawyers' mental health investigations. When reviewing ineffective assistance claims, federal courts of appeals often accept a low standard for mental health investigations, even if they were rushed or later contradicted by other examiners. Furthermore, courts often doubt that mental health evidence, even if it should have been investigated, would have changed the outcome in capital mitigation cases.

Nevertheless, the core principle of the Porter ruling remains valid: a very poor investigation of significant trauma constitutes ineffective assistance. When trial lawyers conduct minimal investigations into severe early trauma and its mental health consequences, courts have followed Porter's lead and declared the legal assistance ineffective. Taken together, the reviewed cases show a generally unfavorable environment for capital defendants appealing based on undiscovered mental health issues like PTSD. At the same time, courts will intervene in cases of clearly substandard performance.

A key lesson from these cases is that capital defendants benefit from researching and presenting mitigation evidence related to PTSD, trauma, and other mental illnesses during the trial phase. Appellate courts are much less likely to provide relief through habeas corpus after conviction and sentencing. This means that the trial defense lawyer must be thorough in investigating and presenting mitigating evidence. The need for a thorough investigation is especially crucial because prosecutors have an unclear obligation to disclose potentially favorable information in mitigation. Prosecutors are generally required to disclose favorable evidence, but this standard is hard to apply to mitigation, where the goal is to evoke sympathy. Therefore, the defense team cannot rely on the prosecution to disclose helpful mitigating information.

Another lesson is that expert opinions from forensic psychiatrists can help courts understand PTSD and trauma. One case, Rhoades v. Henry, which ruled against the state, offers two insights. First, expert opinions should use standardized diagnostic criteria. In Rhoades, an expert psychiatrist and neurologist suggested Mr. Rhoades's trauma history was "suggestive" of PTSD, but the formal diagnostic criteria were not met. The court noted this distinction, reducing the potential mitigating value without a clear diagnosis. Thus, forensic psychiatrists should base their analysis on standard diagnostic criteria. Second, an expert can educate non-experts about PTSD and its varied symptoms. The court in Rhoades seemed to believe that dissociation was the only way trauma might influence a defendant's actions. Forensic psychiatrists can explain other ways PTSD might affect behavior, such as hyperarousal, negative symptoms, and triggers, all of which could be relevant to a mitigating case.

The Importance of Mitigation Specialists

Analysis of case law demonstrates that pretrial investigation of mitigating evidence is crucial in capital cases. Mitigation aims to present evidence of a disability or condition that inspires compassion without excusing the capital crime. For this reason, the defendant's legal team should gain a deep understanding of the defendant's life experiences and create a narrative that can evoke compassion during sentencing. The Supreme Court emphasized the importance of mitigation in a case where it rejected a defense lawyer's choice to limit the mitigation investigation.

Conducting such an investigation is not a simple task. Mitigation specialists take on this responsibility, coordinating a thorough investigation into the lives of capital defendants. They identify issues requiring evaluation by psychologists, psychiatrists, or other medical professionals. Furthermore, mitigation specialists guide the defense team in crafting a thorough, clear, and convincing story of the defendant's life. Legal organizations recommend including a mitigation specialist to investigate a defendant's background related to these mitigating circumstances.

Given their vital role in understanding a defendant's life history, mitigation specialists organize the collection of records necessary to develop a mitigation narrative. For a forensic psychiatrist working with defense counsel, a PTSD diagnosis will almost certainly rely on the same types of data collected by mitigation specialists. These include, but are not limited to, medical, educational, employment, incarceration, institutionalization, or military records. Mitigation specialists also interview various individuals involved in the client's life. They may also be skilled at getting sensitive information about the defendant's background from the defendant or others. The sum of their duties makes it likely that mitigation specialists are the primary investigators of a defendant's past emotional, sexual, or physical trauma.

Forensic Experts versus Mitigation Specialists

There are clear similarities between the roles of a mitigation specialist and a forensic psychiatrist. Both are tasked with gathering information about a capital defendant's life history and explaining how this informs their understanding of the individual. Mitigation specialists may have an advantage in earning a defendant's trust. In contrast, a forensic expert ideally maintains an objective or neutral stance toward the defendant.

The clinical experience and knowledge of forensic psychiatrists give them certain advantages in building mitigation cases. They might better understand when a defendant's communication style is influenced by a mental health condition. Because of their medical and clinical training, psychiatrists may be better equipped than mitigation specialists to gather, interpret, and draw conclusions from medical records. For example, in a case where an individual has a prior medical diagnosis and treatment for PTSD, a psychiatrist could reliably offer an opinion on the adequacy and duration of medication, or the severity of symptoms based on past medical care.

A defense-retained expert must be careful to remain unbiased. In some cases, the forensic expert might be asked to take on a role beyond a psychiatric evaluation, such as providing therapy. Experts must avoid mixing forensic and treatment roles. While the history collected by a mitigation specialist may be similar to that gathered by a psychiatrist, the expert might identify events in the defendant's life that both evoke compassion and were previously unknown to the legal team. Defense counsel may then decide if further investigation of such life events is warranted.

Even if limiting a mitigation evaluation could be grounds for appeal, a petitioner might not succeed if the court decides that the proposed mitigating mental health evidence would also reveal strong aggravating evidence (factors making the crime worse).

PTSD in the Mitigation Presentation

Forensic psychiatrists may find providing testimony about the effects of trauma in the mitigation phase more comfortable than in criminal responsibility testimony. This is because mitigation aims to offer compassion and understanding of the individual, not to excuse the capital crime. Therefore, an expert might have more freedom to discuss current research on specific types of trauma, if applicable to the defendant. For instance, for some defendants with extensive childhood trauma, an expert could cautiously discuss adverse childhood experiences (ACEs) during sentencing. A growing body of research links ACEs to both juvenile and adult criminal behavior. Thus, routine ACE scores could be a useful tool that adds scientific weight to the argument that a person's childhood trauma contributed to poor life outcomes, with the understanding that correlation does not imply causation.

Concerns about PTSD in Mitigation

While courts are increasingly aware of how trauma affects mental health and criminal responsibility, emphasizing PTSD in this way has potential drawbacks. Because PTSD symptoms are highly subjective, focusing on a defendant's traumatic history could lead many to claim trauma as a reason for leniency. The definition of a traumatic stressor in diagnostic manuals has broadened over time, potentially allowing more individuals to qualify for a PTSD diagnosis.

Concerns about exaggerating traumatic backgrounds are especially high in mitigation cases. This is because mitigation aims to create sympathy for the defendant and does not strictly require a formal PTSD diagnosis. Although certain traumatic events are linked to PTSD, they are not always sufficient or necessary to cause symptoms. There is a fear that if trauma and PTSD become widely used as a mitigating strategy, simply experiencing trauma might be wrongly considered the same as having PTSD, which could lead to misuse of the diagnosis.

Another concern is the possibility of someone faking PTSD or its symptoms. As noted, PTSD is a diagnosis primarily based on subjective symptoms that are difficult to objectively confirm in clinical practice. The diagnosis has been criticized for relying too much on clinical judgment and patient reports. It is hard to definitively prove or disprove symptoms like nightmares, flashbacks, or consistently avoiding trauma-related stimuli. Even proving the existence of an initiating traumatic event, which may have occurred years ago, can be difficult to corroborate. Furthermore, exposure to a traumatic event does not guarantee the development of PTSD. Studies show that while many people experience trauma, most do not develop PTSD.

Psychological testing can be useful in detecting or disproving suspected cases of faked PTSD. Various tests, such as the Miller-Forensic Assessment of Symptoms (M-FAST), the Structured Interview of Reported Symptoms-2 (SIRS-2), the Infrequency-Posttraumatic Stress Disorder scale (Fptsd) of the Minnesota Multiphasic Personal Inventory-2 (MMPI-2), and the Personality Assessment Inventory (PAI) may help distinguish between genuine and faked cases of PTSD, but no single test is definitive.

Toward a Trauma-Informed Jurisprudence

By educating courts about the scientific understanding of PTSD, forensic psychiatrists can help the U.S. judicial system develop a legal framework that recognizes trauma's effects and appropriately considers it in criminal cases. In the short term, legal practices may evolve to establish a standard where forensic psychiatrists, psychologists, and social workers are expected to actively educate judges and juries about PTSD during the sentencing phase. If lawyers fail to investigate and develop a defense strategy that accounts for PTSD, their assistance could be deemed ineffective, potentially giving convicted offenders a second chance through a new trial or resentencing. Such a standard might have changed the outcomes of many cases discussed here by holding lawyers to a higher standard in investigating and advocating for leniency based on trauma.

In the long term, it is possible that advocacy could lead to the categorical banning of execution for certain groups or subgroups affected by PTSD or severe trauma. This would involve an argument based on the Eighth Amendment, similar to Supreme Court decisions that barred the execution of juveniles and individuals with intellectual disabilities. Some have argued that veterans diagnosed with service-related PTSD and traumatic brain injury should be entirely exempt from the death penalty. While this proposal is broad, it could be valuable to prevent the injustice of executing a combat veteran whose crime is linked to their military service and injury, compared to executing veterans whose crimes are unrelated.

However, defining different groups who have experienced specific types of trauma that could categorically prevent them from receiving the death penalty would be a formidable task. This is because even if trauma is defined by when it occurred (childhood, adolescence, or adulthood), its nature (physical, sexual, emotional, or neglect), and its duration, PTSD symptom clusters vary among different populations. For example, some studies suggest a lower prevalence of full PTSD in older adults compared to the general population. Additionally, as noted earlier, many individuals experience horrific suffering but do not develop PTSD symptoms. It is also recognized that childhood trauma can contribute to personality disorders, such as borderline and antisocial personality disorders, and PTSD symptoms can be difficult to distinguish from traits of these disorders, especially in cases of Complex PTSD, a more severe form.

Conclusion

A similar dilemma exists regarding the application of the death penalty: balancing individual fairness with the need for systemic justice. In this analysis, there was no consistent approach to evaluating trauma in defendants' backgrounds. The capital appeals process offered a way for more mitigating evidence about trauma to be introduced and weighed, but based on these findings, defendants at the federal appellate court level are likely to receive relief only in the most extreme cases of ineffective legal assistance.

In 2008, after many of the original trials of these defendants, the American Bar Association released guidelines to set performance standards for defense teams in death penalty cases. These standards instruct capital defense teams to gather, understand, and analyze all relevant documentary and anecdotal information about the client's life. The guidelines list all important areas of an individual's life history, including mental health history, history of abuse and neglect, trauma history, military experience, family history, and genetic vulnerabilities.

Since these guidelines were published, it remains unclear whether their recommendations are aspirational or mandatory. One case suggests they might be aspirational, although that defendant's trial occurred around the time the guidelines were published. Because of the significant tasks defense teams face in meeting these recommendations, the extensive data collection and interpretation required for capital defendants may systematically exceed the resources allocated to them, even with the help of a mitigation specialist.

Looking ahead, one recommendation for achieving a better balance would be to require a structured approach to reviewing the trauma areas outlined in the guidelines. A second recommendation would be for courts to more readily appoint consultants to defense teams to interpret potentially mitigating evidence. For defendants with suspected PTSD, a solution could be appointing a forensic psychiatrist or other mental health clinician to work with defense counsel early in the mitigation investigation. Regardless of the feasibility of these recommendations, ensuring an extremely thorough and thoughtful mitigation investigation regarding trauma history is believed to be essential for achieving systemic justice for capital defendants. Without this, concerns about the arbitrary nature of the death penalty will continue.

Introduction

Posttraumatic stress disorder (PTSD) has been used in different ways in criminal defense cases. It can be hard to show a clear link between PTSD and criminal behavior. This is because proof is needed to connect the traumatic event to the mental health symptoms, and then to connect the symptoms to the crime itself. One way PTSD can be used is to ask for a lighter sentence. Even if a person's PTSD does not fully excuse their criminal actions, the seriousness of their trauma and suffering might lead to a more lenient sentence.

Courts sometimes view PTSD claims with doubt, often worrying that someone might fake the diagnosis to avoid punishment. However, some people with PTSD might not want to discuss it. They might not identify with the diagnosis, or they might not want to share their mental health history or relive past traumatic events. So, while mental health experts in court must consider if a defendant is faking PTSD symptoms, it is just as possible that a defendant simply does not want to talk about their traumatic past.

PTSD, Mitigation, and the Death Penalty

For someone facing the death penalty, the defense team must try to find out if their client has experienced severe trauma or has a PTSD diagnosis. This investigation should ideally happen before the trial begins. This allows mental health evidence to be used during the first part of the trial, where guilt is decided. For instance, if PTSD caused poor decision-making, it might show that a person did not plan a crime, which is needed for a first-degree murder conviction.

If a defendant is found guilty, diagnoses like PTSD can also be used during sentencing to ask for a lighter punishment. This process, called mitigation, is very important in death penalty cases. Because of this, the American Bar Association suggests that defense teams in these cases include a mitigation specialist. This expert investigates the defendant's background to find reasons for a less severe sentence.

Legal experts Liebman and Shephard studied how courts define reasons for a lighter sentence, based on a mental disorder or a person's background. They found that courts consider: if the person's suffering shows regret or creates sympathy; if their mental or decision-making problems at the time of the crime reduced their responsibility, and thus society's desire for revenge; if the threat of the death penalty had less impact on them than on someone without mental health issues; and if executing the person would be less meaningful because others would find it hard to relate to them.

The U.S. Supreme Court has agreed that mitigation is very important in death penalty cases. In Wiggins v. Smith (2003), the Court decided that a lawyer's poor investigation into Mr. Wiggins' background for a mitigation case violated his Sixth Amendment rights. Two years later, in Rompilla v. Beard, the Court made a similar ruling. It stated that not investigating and finding evidence for a lighter sentence during the sentencing phase was a form of ineffective legal help. Even though Mr. Rompilla did little to help his lawyers and sometimes even misled them, the Court found his counsel ineffective. They failed to look at a file from a previous conviction that contained important mitigating evidence not found elsewhere.

The Court also ruled in Lockett v. Ohio that all factors that might lead to a lighter sentence must be considered, and these factors cannot be limited to a specific list. In Skipper v. South Carolina, the Court further stated that mitigating evidence cannot only be from before the crime occurred. A mental health diagnosis like PTSD easily fits within this broad range of evidence that can be used for mitigation.

PTSD and Capital Postconviction Appeals

If a defendant's severe trauma or PTSD was not considered during the sentencing part of their trial, they might try to bring it up during the appeals process, though this can be hard. The appeals process for death penalty cases is known for being very thorough. This is to make sure that people sentenced to death receive fair legal treatment. Almost all states with the death penalty require an appeal review of all death sentences, even if the defendant doesn't want one. The appeals process allows people to have their background reviewed again, giving them a chance to present information about their life, like past trauma, that could have changed their sentence.

The death penalty appeals process has several steps: the direct appeal, the state postconviction appeal, and the final federal habeas corpus review. While this article will not cover all these steps in detail, federal habeas corpus law is worth discussing briefly because it relates to the cases mentioned here.

Congress gave state prisoners the right to federal habeas corpus if their imprisonment violated federal law. This makes federal habeas corpus the last step in appeals for those facing the death penalty. In 1996, Congress made it harder to use habeas corpus to challenge convictions by passing the Antiterrorism and Effective Death Penalty Act (AEDPA). This law set time limits for habeas corpus cases and made it very difficult for someone to file a second habeas petition. It also restricted when a federal court could grant habeas corpus. Federal judges can only grant relief if the state's conviction went against clear federal law or if the facts were determined unreasonably based on the evidence.

Ineffective Assistance of Counsel

A frequent issue brought up during death penalty appeals is ineffective assistance from a lawyer. This includes cases where a lawyer failed to investigate and present evidence of PTSD. The U.S. Supreme Court created a two-part test for ineffective legal help in the important case of Strickland v. Washington. First, the defendant must show that the lawyer's work was flawed. This means showing that the lawyer made such serious mistakes that they failed to provide the legal help guaranteed by the Sixth Amendment. Second, the defendant must show that these flaws harmed the defense. This means showing that the lawyer's errors were so serious that the defendant did not receive a fair trial, one whose outcome can be trusted.

To win an ineffective assistance claim, a convicted person must prove two things: that their lawyer was seriously flawed, and that this flaw harmed their case enough to make the trial's outcome unreliable, meaning the trial could have ended differently. American courts have consistently used this Strickland test since it was established.

Porter v. McCollum

The November 2009 case of Porter v. McCollum further developed the ideas from Wiggins and Rompilla. The Court ruled in favor of a person who claimed their lawyer failed to investigate or present evidence of PTSD that could have led to a lighter sentence. This case involved George Porter, a decorated Korean War Army veteran. He was convicted of two counts of first-degree murder after killing his ex-girlfriend and her boyfriend in 1986. After first representing himself, he later pleaded guilty with the help of a standby lawyer and was sentenced to death.

Mr. Porter then asked the state court to overturn his conviction, arguing that his lawyer failed to investigate and present proper evidence for a lighter sentence. The court hearing uncovered details of a difficult childhood, repeated physical abuse against him and his mother, and an incident where his father tried to shoot him. During the Korean War, Mr. Porter's unit fought in two major battles, enduring extreme lack of sleep and food, and suffering many casualties. A commander called these battles "trying, horrifying experiences." After his time in the military, Mr. Porter started showing symptoms like those of PTSD. He had nightmares, often got into physical fights, and psychological tests suggested he had brain changes. These changes made him more likely to act impulsively and violently.

During the state habeas hearings, a brain psychology expert who examined Mr. Porter testified. The expert said that at the time of the murders, Mr. Porter met two legal conditions for a lighter sentence: his ability to follow the law was reduced, and he suffered from extreme mental or emotional disturbance. However, the lower court judge disagreed. The judge ruled that Mr. Porter had not proven any legal reasons for a lighter sentence. The judge dismissed his childhood trauma because of the time between his abuse as a youth and the murders. The judge also said his military service had no bearing on his crimes. Eventually, Mr. Porter's case reached the U.S. Supreme Court.

The U.S. Supreme Court reviewed Mr. Porter's claim of ineffective legal help using the Strickland v. Washington test. The Court found that Mr. Porter's lawyer had indeed performed poorly enough to meet both parts of the Strickland test. For the first part, about whether the lawyer's work was insufficient, the Court noted that the lawyer "did not get any of Porter's school, medical, or military service records or talk to any of Porter's family." This failure prevented other defense options, such as using mental health evidence.

For the second part of the Strickland test, the Court decided that Mr. Porter was harmed by this poor defense. If his lawyers had properly investigated his background, they could have presented a case showing: (1) Mr. Porter's brave military service in two major and terrible Korean War battles, (2) his difficulties returning to normal life after the war, (3) his history of physical abuse as a child, and (4) his brain abnormality, trouble with reading and writing, and limited schooling.

Methods

This article examines various court cases found by searching legal databases like Westlaw and Casetext. The search focused on federal appeals cases from 2010 to 2020. The Porter case was chosen as a starting point because it was the first U.S. Supreme Court case to use the decisions from Wiggins (2003) and Rompilla (2005) in a case about a lawyer's ineffective help for not investigating or presenting PTSD evidence. The search only included death penalty cases where the person appealing claimed ineffective legal assistance because proof of PTSD or past trauma was not presented during sentencing.

Results

The search found 23 cases that fit the criteria. Twenty-two of these were from federal appeals courts, and one was from the U.S. Supreme Court. Only three cases (13%) resulted in a decision favorable to the person appealing, while the other 20 cases (87%) favored the government.

Cases Decided against Petitioner

Most cases ruled against the person appealing, deciding that the Strickland test for ineffective legal help was not met. Some decisions were based on the first part of Strickland, concluding that the lawyer's work was not flawed. Examples include Nelson v. Davis and Anderson v. Secretary, Florida Department of Corrections. In other cases, the second part of the Strickland test, which addresses harm, went against the person appealing (e.g., Jones v. GDCP Warden). Some cases, like Pike v. Gross, found neither a lawyer's error nor harm to the defendant.

Cases Decided for Petitioner

In the three cases where the appeal was successful, which was a small number (13%) of those reviewed, the people appealing had significant histories of hardship and trauma. Also, the courts clearly pointed out specific ways the trial lawyers had failed in their duties.

In the Andrews v. Davis case, evidence that should have been presented was similar to that in Porter. Mr. Andrews grew up in a segregated Alabama school where he experienced "beatings, brutality, poor conditions, and sexual predators." The jury that decided his sentence never heard this. A psychiatrist believed Mr. Andrews had PTSD and brain damage. No mental health evaluation was done before his original trial's sentencing phase. The court applied the Strickland test and found the lawyer's work flawed. The investigation was very limited, involving only reviewing courthouse files, talking to Mr. Andrews' mother briefly at an airport, and driving around the city. The Andrews court also found that this poor performance harmed the defense. The court stated that if the jury had known about the severe abuse Mr. Andrews suffered as a vulnerable child in a state-run facility, there was a good chance at least one juror would have shown mercy and spared his life.

In June 2020, the U.S. Supreme Court found the trial lawyer ineffective in Andrus v. Texas. Terence Andrus was convicted of two murders and sentenced to death. As a child, his mother was addicted to drugs, and he had to care for his siblings. He got involved in crime and spent time in juvenile detention, where he received medication, was placed in solitary confinement, and became part of gang culture. None of this information reached the jury. During his trial, Mr. Andrus's lawyer chose not to give an opening statement and ended his case right after the prosecution finished theirs. The Court found that the lawyer hardly knew the witnesses he called to defend Mr. Andrus. The trial lawyer claimed Mr. Andrus had no mental health issues. However, a mitigation expert later wrote a report stating that Mr. Andrus "had been diagnosed with affective psychosis," a condition with symptoms like depression, mood swings, and trouble controlling emotions. A psychologist also testified during the habeas hearing that Mr. Andrus had "very clear trauma and PTSD symptoms from, among other things, severe neglect and exposure to domestic violence, substance use, and death in his childhood."

Mr. Doe (a made-up name) had experienced multiple rapes while in prison before, and he also had a history of childhood trauma, including neglect from his mother and beatings from his uncle. These difficult experiences were not presented during the sentencing part of his murder trial. The court observed that the record for the mitigation phase of the trial was only 35 pages long. The Ninth Circuit Court ruled in favor of Mr. Doe, stating that the prison rapes, mental illness (including PTSD), and evidence of childhood trauma should have been presented to ask for a lighter sentence.

Discussion

Based on the cases reviewed, it is hard to prove that a lawyer was ineffective for not investigating trauma. This highlights how important it is to fully evaluate a defendant's mental health and trauma history before the trial, as this might be the only chance to present that information. This discussion will look at how forensic psychiatrists and mitigation specialists work together to build cases for a lighter sentence for defendants with PTSD or severe trauma.

Case Law Analysis

Courts have been reluctant to deeply review mental health investigations since Porter. They often accept low standards and doubt that mental health evidence would have changed sentencing. However, Porter's ruling that extremely poor trauma investigation is ineffective remains valid, and courts will address clearly substandard work.

A key takeaway is that defendants in death penalty cases should present evidence of PTSD, trauma, and other mental illnesses during the trial. Appeals courts are less likely to grant relief later. This means trial lawyers must be very thorough.

A thorough investigation is also crucial because prosecutors have unclear duties about sharing information that might help the defense. Prosecutors must share favorable or innocent-proving evidence under the Brady v. Maryland ruling. However, this rule is hard to apply to mitigation because it's subjective what information might create sympathy.

Expert opinions from forensic psychiatrists can help courts understand PTSD and trauma. These opinions must be based on accepted diagnostic standards. In Rhoades v. Henry, an expert said Mr. Rhoades' trauma history "suggested" PTSD, but the official diagnostic criteria were not met, which weakened the evidence for a lighter sentence.

An expert can also help educate non-legal professionals about PTSD and its many different symptoms. The court in Rhoades seemed to believe that dissociation was the only way trauma could affect a defendant's actions. Forensic psychiatrists and other experts can explain other ways PTSD might influence behavior, such as extreme alertness (hyperarousal), a lack of emotions (negative symptoms), and sudden strong reactions (triggering). All these factors could affect a defendant's actions and support a case for a lighter sentence.

The Importance of Mitigation Specialists

Studying court cases reveals that investigating evidence for a lighter sentence before the trial is vital in death penalty cases. As Stetler pointed out, "mitigation is a way to show evidence of a disability or condition that brings out sympathy, but it does not excuse or justify the crime." Because of this, the defense team needs to thoroughly understand the defendant's life story and create an account that can evoke sympathy during sentencing. The U.S. Supreme Court stressed the importance of mitigation in Wiggins v. Smith, where it rejected a defense lawyer's choice to limit the investigation into mitigating factors.

Doing such an investigation is not easy. Mitigation specialists handle this task, organizing a detailed look into the lives of defendants facing the death penalty. They "find issues that need to be evaluated by psychologists, psychiatrists, or other medical professionals." Mitigation specialists also help the defense team create a complete, clear, and convincing story of the defendant's life. The American Bar Association even recommends including a mitigation specialist to investigate a defendant's background for these reasons.

Because mitigation specialists play a key role in understanding a defendant's life history, they arrange the collection of records used to build the mitigation story. A forensic psychiatrist hired by the defense to diagnose PTSD will almost certainly use similar information that mitigation specialists gather. This includes medical, educational, employment, incarceration, institutional, or military records, among others. Mitigation specialists also interview many people involved in the client's life and are often skilled at getting sensitive information. Given all their tasks, mitigation specialists are likely the main investigators of a defendant's past emotional, sexual, or physical trauma.

Forensic Experts versus Mitigation Specialists

There are clear similarities between what a mitigation specialist does and what a forensic psychiatrist does. Both gather information about a defendant's life history and show how this helps understand the person. A mitigation specialist might be better at gaining the defendant's trust. In contrast, a forensic expert is supposed to remain objective and neutral toward the defendant.

Forensic psychiatrists' medical and clinical experience gives them certain advantages in building mitigation cases. They might better understand when a defendant's way of speaking is affected by a mental health condition. Because of their training, psychiatrists may be better able than mitigation specialists to collect, understand, and draw conclusions from medical records. For example, if someone had a past diagnosis and treatment for PTSD, a psychiatrist could reliably give an opinion on whether the medication was sufficient or how severe the symptoms were based on the past medical care.

A forensic expert hired by the defense must remember to stay unbiased. Sometimes, an expert might be asked to do more than just a psychiatric evaluation, like providing therapy. Experts must be careful not to mix up their roles as a court expert and a therapist. While the information gathered by a mitigation specialist might be similar to what a psychiatrist collects, the expert might uncover life events that create sympathy and were unknown to the legal team before. The defense lawyer might then decide these events need more investigation.

Although a defense lawyer decides if further investigation is needed, choosing to limit the mitigation investigation despite a psychiatrist's findings can be grounds for appeal for a defendant facing the death penalty. For the forensic psychiatrist, if there's no proof to support trauma reported by the defendant, it can weaken the expert's testimony and the overall mitigation plan. Even if limiting an evaluation can lead to an appeal, the person appealing might not succeed if the court decides that the mental health evidence would have also brought up strong evidence against them, as seen in Jones v. GDCP Warden.

PTSD in the Mitigation Presentation

Forensic psychiatrists might find it easier to testify about the effects of trauma during the mitigation phase. This is because they are not fiercely defending their conclusions, as they would in testimony about criminal responsibility. Again, mitigation aims to help jurors understand the individual, not to justify or excuse the crime. This gives experts more freedom to discuss current research about specific types of trauma, if it applies to the defendant. For example, in some cases reviewed, severe childhood trauma was found. An expert could discuss "adverse childhood experiences" (ACEs) during sentencing. A growing amount of research links childhood trauma to crime in both young people and adults. Thus, regular ACE scores could be a very useful tool, adding scientific backing to the idea that a person's childhood trauma led to poorer life outcomes. However, it is important to remember that a link does not mean one thing causes the other.

Concerns about PTSD in Mitigation

While the cases in this article show courts are increasingly aware of how trauma affects a person's mental health and criminal responsibility, there are potential problems with focusing on PTSD in this way. Because PTSD symptoms are very subjective, there's a real worry that emphasizing traumatic backgrounds in criminal cases could lead almost every defendant to claim trauma as a reason for a lighter sentence. As Matto and colleagues have pointed out, the definition of a traumatic event has broadened over time in diagnostic manuals, from an objective standard to a more subjective one. This could mean more people might qualify for a PTSD diagnosis.

Worries about people overusing or exaggerating traumatic histories are greater in mitigation cases than in cases about criminal responsibility. This is because mitigation aims to create sympathy for the defendant and doesn't even require a formal PTSD diagnosis. Research has shown that traumatic events are not always needed or even enough to cause PTSD symptoms. There is concern that if focusing on trauma and PTSD becomes a widely used strategy for lighter sentences, the simple existence of trauma might be confused with a PTSD diagnosis, leading to misuse of the diagnosis. Unlike the insanity defense, which requires a mental disorder, almost any defendant could claim to be a victim of trauma because the experience of trauma is so subjective.

Another concern is the possibility of people faking PTSD or its symptoms. As mentioned, PTSD mainly involves subjective symptoms that are hard to prove objectively in medical settings. The diagnosis has been criticized for relying too much on a doctor's judgment and what the patient says. In other words, it's hard to definitively prove or disprove symptoms like nightmares, flashbacks, or constantly avoiding things connected to the trauma. Even proving that a traumatic event happened years ago can be difficult, and finding supporting evidence may be a challenge. Furthermore, simply experiencing a traumatic event does not mean someone will develop PTSD. A national survey found that about 7.8 percent had PTSD in their lifetime, even though many more people reported experiencing a traumatic event. So, while many people go through trauma, most do not develop PTSD.

Toward a Trauma-Informed Jurisprudence

By teaching courts about the science of PTSD, forensic psychiatrists can help the U.S. legal system move towards a system that both understands the effects of trauma and properly considers it when deciding criminal responsibility. In the short term, legal practices might change to expect forensic psychiatrists, psychologists, and social workers to actively teach judges and juries about PTSD during the sentencing phase of trials.

Given how PTSD can affect a defendant's responsibility, lawyers who do not investigate and build a defense that considers PTSD would be seen as ineffective. This could potentially give convicted offenders a second chance through a new trial or sentencing. Such a standard might have changed the outcome of many cases discussed here, by requiring lawyers to meet a higher standard when investigating and arguing for a lighter sentence based on trauma.

In the long term, efforts to advocate for change could lead to certain groups of people affected by PTSD or severe trauma being completely excluded from the death penalty. This would be based on an Eighth Amendment argument, similar to what the U.S. Supreme Court discussed in Roper v. Simmons and Atkins v. Virginia. For instance, Giardino has argued that veterans diagnosed with service-related PTSD and traumatic brain injury should never face the death penalty. Wortzel and Arciniegas, while finding Giardino's idea very broad, believe it could be valuable. It might prevent the unfair execution of a combat veteran with PTSD or a brain injury at the time of the crime, especially compared to executing veterans whose crimes have no link to their military service or injuries.

When thinking about other types of PTSD, it would be extremely hard for the law to define different groups who have experienced specific types of trauma that could then be entirely excluded from the death penalty. This is because even if trauma is defined by when it happened (childhood, teen years, or adulthood), its nature (physical, sexual, emotional, or neglect), and how long it lasted (ongoing or a single event), the symptoms of PTSD are not consistent across different groups of people. Also, many people suffer terribly but do not develop PTSD symptoms. It is also known that childhood trauma can lead to personality disorders, such as borderline and antisocial personality disorders. PTSD symptoms can be hard to tell apart from the traits of these disorders, especially if it is Complex PTSD, a more severe form.

Conclusion

This leads to a similar problem noted by Wortzel and Arciniegas, who examined the American Law Institute's (ALI) 2009 study on how the death penalty is applied. The ALI found that the death penalty system cannot balance two goals: deciding who should be executed on an individual basis and ensuring fairness across the entire system. In this article's analysis, there was no consistent approach to evaluating trauma in defendants' backgrounds. The death penalty appeals process allowed for more evidence about trauma to be presented and considered. However, based on the findings, defendants at the federal appeals court level are likely to get relief only in the most extreme cases of a lawyer's poor performance.

In 2008, after many of these defendants' original trials, the American Bar Association issued new guidelines. These Supplementary Guidelines for Mitigation Function of Defense Teams in Death Penalty Cases set standards for lawyers. They tell death penalty defense teams to collect, understand, and analyze all written and spoken information about the client's life. The guidelines list all important areas of a person's life history, such as mental health history, past abuse and neglect, trauma history, military experience, family history, and genetic problems.

Since these guidelines were published, it is still not clear if their recommendations are merely suggestions or if they are required. The Andrus v. Texas case might suggest they are just suggestions, even though Mr. Andrus's trial happened around the same time the guidelines came out.

Defense teams face many challenges in meeting these guidelines. The amount of information they need to collect and interpret for defendants in death penalty cases might be more than the resources they are given, even with a mitigation specialist's help. To create a better balance, one suggestion is to require a systematic way to review the trauma areas mentioned in the guidelines. Another idea is for courts to appoint consultants more often to help defense teams understand evidence that could lead to a lighter sentence. For defendants with suspected PTSD, this could mean appointing a forensic psychiatrist or other mental health expert to work with the defense lawyer early in the mitigation investigation. It is believed that achieving fairness for death penalty defendants depends on making sure there is an extremely thorough and careful investigation into their trauma history. Without this, worries about the unfairness of the death penalty will continue.

Posttraumatic stress disorder, or PTSD, has been used as a defense in many criminal cases. Yet, it can be hard to prove that PTSD is directly linked to a crime. This is because a clear connection must be shown between a shocking event and the person's mental health issues. Then, another clear link must be shown between those mental health issues and the crime itself. Even if PTSD cannot fully excuse a crime, the deep suffering from PTSD symptoms can sometimes lead to a lighter sentence.

Courts sometimes do not believe claims of PTSD. A main worry is that people might fake having PTSD to avoid punishment. However, it is also true that some people with PTSD may not want to talk about their mental health or painful past experiences. So, while experts must check if someone is faking PTSD, it is just as likely that a person simply does not want to share their trauma history.

PTSD, Mitigation, and the Death Penalty

For a person who might face the death penalty, it is important for their legal team to find out if they have gone through severe trauma or have PTSD. Ideally, this should happen before the trial starts. This allows mental health facts to be used when deciding if the person is guilty. For example, if PTSD made it hard for someone to think clearly, it might mean they did not plan the crime, which is needed for some murder charges.

If a person is found guilty, a diagnosis like PTSD can still help them get a lighter sentence. This is called "mitigation." It is a key part of death penalty trials. The American Bar Association suggests that defense teams in these cases should have a special "mitigation specialist." This person looks into the defendant's background.

The U.S. Supreme Court has said that looking at reasons for a lighter sentence is very important in death penalty cases. For example, in the case of Wiggins v. Smith in 2003, the Court said a lawyer did not do enough to look into Mr. Wiggins' past trauma. In 2005, in Rompilla v. Beard, the Court made a similar ruling. It said lawyers must look for facts that could lead to a lighter sentence, even if the defendant makes it hard. The Court has also said that all possible reasons for a lighter sentence should be considered, not just a short list. This means a mental health issue like PTSD fits clearly into what courts should consider.

PTSD and Capital Postconviction Appeals

If a person's severe trauma or PTSD was not looked at during their trial, they might try to bring it up later during appeals. This can be hard to do. The appeals process for death penalty cases is very thorough to make sure people on death row get fair treatment. Most states that have the death penalty require that all death sentences are reviewed by a higher court, even if the person does not want it. This review helps prevent innocent people or those who do not deserve such a punishment from being put to death. The appeals process gives people another chance to share facts about their life, like trauma, which might have changed their sentence.

The appeals process has a few steps: a direct appeal, a state appeal after the conviction, and then a final federal review called "habeas corpus." In 1996, a law called AEDPA made it much harder to use federal "habeas corpus" to challenge criminal convictions. This law added time limits and strict rules for filing appeals, making it harder for federal courts to change state court decisions unless there was a clear mistake in law or facts.

Ineffective Assistance of Counsel

In the appeals process for death penalty cases, a common complaint is "ineffective assistance of counsel." This means the lawyer did a bad job. If a lawyer failed to look into and present facts about PTSD, this could be seen as ineffective assistance. The Supreme Court set up a two-part test for this in the case of Strickland v. Washington.

First, the person must show their lawyer's work was very poor. This means the lawyer made mistakes so serious that they were not giving the help a lawyer should. Second, the person must show that these poor actions hurt their case. This means the lawyer's mistakes were so serious that the person did not get a fair trial, and the trial's outcome cannot be trusted. To win such a claim, a person must prove both that the lawyer was seriously bad at their job and that this bad work likely changed the outcome of the trial.

Porter v. McCollum

In November 2009, the Supreme Court heard the case of Porter v. McCollum. This case built on earlier rulings, siding with a person who said their lawyer failed to look into or present facts about PTSD. George Porter was a brave soldier in the Korean War. In 1986, he killed his ex-girlfriend and her boyfriend. He was sentenced to death.

Mr. Porter later asked for his case to be reviewed. He said his lawyers did not look into or show important facts that could have helped him. During the court review, it came out that Mr. Porter had a tough childhood, suffered trauma during the Korean War, and had struggled for a long time with drug use and mental health issues. His family told stories of his father hurting him and their mother. They even said his father tried to shoot him. In the Army, Mr. Porter was in very hard battles where soldiers had little sleep or food, and many were hurt or killed. A commander said these battles were "trying, horrifying experiences."

After the war, Mr. Porter started having problems that fit PTSD. He had bad dreams, got into many fights, and tests showed he might have had brain changes that made him more likely to act on impulse and be violent.

During his state appeal, an expert said Mr. Porter had two reasons for a lighter sentence at the time of the murders: he could not control his actions well, and he was very upset emotionally. But the lower court judge said Mr. Porter did not prove any reasons for a lighter sentence. The judge did not think his childhood trauma mattered because it was so long ago. The judge also said his war service had nothing to do with his crimes. Eventually, Mr. Porter's case reached the U.S. Supreme Court.

The Supreme Court looked at Mr. Porter's claim that his lawyer was ineffective, using the rules from Strickland v. Washington. The Court found that Mr. Porter's lawyer did such a poor job that both parts of the Strickland test were met. First, the Court said the lawyer's work was not good enough. The lawyer "did not get any of Porter’s school, medical, or military service records or talk to any of Porter’s family members." This kept other defense options, like those about his mental health, from being used.

Looking at the second part of the Strickland test, the Court said Mr. Porter was hurt by this poor defense. If his lawyer had looked into his background, they could have shown: (1) Mr. Porter's brave war service in terrible battles, (2) his struggles to live a normal life after the war, (3) his childhood history of physical abuse, and (4) his brain problems, trouble reading and writing, and limited schooling.

Methods

This article looked at many court cases found by searching legal websites like Westlaw and Casetext. The search focused on federal appeals cases from 2010 to 2020. The Porter case was chosen as a starting point because it was the first Supreme Court case to apply rules from earlier cases to claims where lawyers failed to look into or present facts about PTSD. The search looked for death penalty cases where the person appealing said their lawyer did a bad job because evidence of PTSD or past trauma was not shown during sentencing.

Results

The search found 23 cases that fit the rules. Most of these (22) were from federal appeals courts, and one was from the U.S. Supreme Court. Out of these, only three cases (13%) ruled in favor of the person appealing. The other 20 cases (87%) ruled against them.

Cases Decided against Petitioner

Most of the cases found ruled against the person appealing. They found that the Strickland test for a lawyer doing a bad job was not met. Some cases said the lawyer's work was not poor enough. Other cases said that even if the lawyer's work was poor, it would not have changed the outcome of the case. Some cases, like Pike v. Gross, said both, finding no major mistake and no harm done.

Cases Decided for Petitioner

In the three cases that ruled for the person appealing, a small number of all cases reviewed, the people had very hard lives with much suffering and trauma. Also, the courts clearly pointed out how the lawyers at the trial had done a poor job.

Andrews v. Davis

The case of Andrews v. Davis was similar to Porter because important facts were not shown. Mr. Andrews grew up in a harsh school for Black children in Alabama where he faced "beatings, brutality, inadequate conditions and sexual predators." The jury that decided his sentence never heard about this. An expert doctor said Mr. Andrews had PTSD and brain damage. No full mental health check was done before his original sentencing. The court said the lawyer's work was poor. It noted that the investigation was very small, only looking at court files, talking to Mr. Andrews' mother briefly, and driving around the city. The court also said Mr. Andrews was harmed by this poor defense. It said if the jury had known about the brutal abuse he suffered as a child, it is likely at least one juror would have felt pity and spared his life.

Andrus v. Texas

In June 2020, the U.S. Supreme Court said a lawyer was ineffective in Andrus v. Texas. Terence Andrus was found guilty of two murders and sentenced to death. As a child, he was raised by a mother who used drugs and he had to care for his siblings. He got into crime and was in youth detention, where he was given medicine, put in isolation, and got involved with gangs. But the jury never heard this information. His lawyer chose not to give an opening statement and stopped the defense right after the prosecution finished its case. The Court found that his lawyer barely knew the people he called to speak for Mr. Andrus. The lawyer said Mr. Andrus had no mental health problems. But a later expert report said Mr. Andrus "had been diagnosed with affective psychosis," a mental health issue. Another expert said Mr. Andrus had "very clear trauma and posttraumatic stress disorder symptoms from, among other things, severe neglect and exposure to domestic violence, substance use, and death in his childhood."

Doe v. Ayers.

Mr. Doe (not his real name) was raped many times in an earlier prison stay and had a history of childhood trauma, including being ignored by his mother and beaten by his uncle. These experiences were not shared during the sentencing part of his murder trial. The court noted that the record for the sentencing phase was very short. The court ruled for Mr. Doe. It said the prison rapes, mental illness (including PTSD), and facts about childhood trauma should have been presented to help get a lighter sentence.

Discussion

Based on the cases reviewed, it is hard to prove that a lawyer did a bad job by failing to look into trauma. This means it is very important to fully check a defendant's mental health and trauma history before the trial. This might be the only chance to present that information. This discussion looks at how mental health experts and specialists work together to build cases for defendants with PTSD or severe trauma.

Case Law Analysis

In the ten years since the Porter case, our research shows that courts have not been eager to closely check how well lawyers investigate mental health. When looking at claims of bad lawyer help, federal appeals courts seem to accept a low standard for mental health investigations, even if they were rushed or later experts disagreed. Also, courts often seem to doubt that mental health facts, even if they should have been looked at, would have changed the outcome in death penalty cases.

However, the main rule from Porter—that very poor investigation of major trauma means bad lawyer help—is still valid law. When a trial lawyer does very little to look into serious early trauma and its mental health effects, courts have followed Porter's lead and said the lawyer was ineffective. The cases reviewed show that it is generally hard for people appealing death penalty cases to win if their claim is based on overlooked mental health issues like PTSD. But at the same time, courts will act against clearly poor performance.

A lesson from these cases is that people facing the death penalty should find and present facts about PTSD, trauma, and other mental illnesses during the trial. Appeals courts are much less likely to help after a conviction and sentencing. This means the trial lawyer needs to be very thorough in finding and presenting facts for a lighter sentence.

A full investigation is especially important because prosecutors do not always have to share facts that might help the defense get a lighter sentence. Prosecutors must share facts that could prove innocence or help the defense, but what might make someone feel sympathy is less clear. So, the defense team cannot rely on the prosecution to share helpful facts for a lighter sentence, as they might for the guilt part of the trial.

Another lesson is that an expert from the mental health field can help courts understand PTSD and trauma. In the Rhoades v. Henry case, which the state won, an expert said Mr. Rhoades' trauma history "suggested" PTSD but did not meet all the official rules for the diagnosis. The court noticed this and said the value of the information was less without a clear diagnosis. So, mental health experts should make sure their findings are based on clear rules. Also, an expert can teach people who are not doctors about PTSD and its many signs. The court in Rhoades seemed to think that only certain extreme states could be caused by trauma. Experts can explain other ways PTSD affects behavior, like being easily startled or having bad thoughts, which could influence a person's actions and support a case for a lighter sentence.

The Importance of Mitigation Specialists

Review of court cases shows that looking into facts for a lighter sentence before trial is very important in death penalty cases. "Mitigation" means showing facts about a person's struggles that make people feel pity, but it does not excuse the crime. Because of this, the legal team needs to truly understand the defendant's life story. They must then tell this story in a way that can make the court feel pity at sentencing. The Supreme Court in Wiggins v. Smith stressed how important mitigation is, saying lawyers cannot just choose to do a limited investigation.

Doing such an investigation is not easy. Mitigation specialists take on this task. They lead a thorough look into the lives of people facing the death penalty. They "find issues that need to be checked by mental health doctors or other medical experts." These specialists also help the defense team create a full, clear, and powerful story of the defendant's life. The American Bar Association suggests having a mitigation specialist who can look into a defendant's background for facts that could lead to a lighter sentence.

Because mitigation specialists are key to understanding a defendant's life, they will collect many records. These records help build the story for a lighter sentence. If a mental health expert is hired by the defense, a PTSD diagnosis will almost always rely on the same types of facts collected by these specialists. These include medical, school, work, prison, hospital, or military records.

Mitigation specialists also talk to many people who have been part of the client's life. They may also be able to get sensitive information about the defendant's past from the defendant or others. Because of all their duties, it is likely that mitigation specialists are the main people who find out about a defendant's past emotional, sexual, or physical trauma.

Mental health experts hired by the defense must look at the same kinds of facts found by mitigation specialists. This helps them decide if a person meets the rules for a PTSD diagnosis. It is very important to have facts that prove a history of trauma that the defendant talks about. As seen in some cases, appeals were denied partly because courts found that the trauma reported by the defendants was not supported by other people or old records.

Forensic Experts versus Mitigation Specialists

Mental health experts and mitigation specialists have many similar tasks. Both collect facts about a person's life and use them to understand the individual. A mitigation specialist might be better at gaining the trust of the defendant. On the other hand, a mental health expert should ideally remain fair and neutral towards the defendant.

Mental health experts' medical training gives them some advantages in building cases for a lighter sentence. They might better understand when a defendant's way of talking is affected by a mental health issue. Because of their medical training, experts may be better at gathering, understanding, and drawing conclusions from medical records. For example, if someone had been diagnosed and treated for PTSD before, an expert could say if the treatment was good enough or how severe the symptoms were based on past medical care.

An expert hired by the defense must remember to stay fair. Sometimes, an expert might be asked to do more than just a mental health check, like providing counseling. Experts must be careful not to mix up their roles as an expert for court and as a therapist.

While a mitigation specialist gathers similar history as a mental health expert, the expert might find events in the defendant's life that both cause pity and were not known to the legal team before. The defense lawyer might then want to look into these life events further.

Even if a lawyer decides to limit the investigation despite what a mental health expert finds, this decision could be a reason for an appeal in a death penalty case. For the expert, if there are no facts to back up any trauma the defendant talks about, it could weaken the expert's statements and the plan for a lighter sentence. While limiting the scope of a review for a lighter sentence can be a reason for appeal, a person might not win if the court thinks that the mental health facts would have brought up strong negative facts about them.

PTSD in the Mitigation Presentation

Mental health experts might find it easier to talk about the effects of trauma during the part of the trial about getting a lighter sentence. This is because they do not have to strongly defend their findings, as they would when talking about a person's mental state during a crime. Again, facts for a lighter sentence are meant to help people understand the individual better, not to excuse the crime. This may give an expert more freedom to discuss what is currently known about a certain type of trauma if it applies to the defendant. For example, for some defendants in the cases we looked at, there was a lot of childhood trauma. An expert could talk about how bad childhood experiences can lead to problems later in life. Much research shows that childhood trauma is linked to criminal behavior in young people and adults. So, looking at these experiences could add scientific weight to the idea that a person's childhood trauma led to worse life outcomes, but it is important to remember that a link does not mean one thing always causes the other.

Concerns about PTSD in Mitigation

While the cases in this article show that courts are more aware of how trauma affects a person's mental health and their guilt in crimes, there can be downsides to focusing on PTSD in this way. Since PTSD symptoms are often based on what a person says they feel, there is a worry that if we focus too much on traumatic pasts, almost every defendant might claim a trauma history to get a lighter sentence. Experts have noted that the definition of what counts as a traumatic event has become wider over time, possibly increasing the number of people who could get a PTSD diagnosis.

Worries about using trauma stories too much or making them sound worse are higher when trying to get a lighter sentence than in cases about criminal responsibility. This is because getting a lighter sentence just means making people feel pity, and it does not even need a formal PTSD diagnosis. Studies have shown that a traumatic event is not always needed or even enough to cause PTSD symptoms. They seem to be very strong stressful events that are otherwise similar to all other stressful events that can affect a person and cause mental health problems. There is a worry that if paying attention to trauma and PTSD becomes a more common way to get lighter sentences, even in smaller cases, just having trauma might be seen as the same as having PTSD. This could lead to the diagnosis being used wrongly more often. Unlike the defense that someone was "insane," which needs a mental illness, almost every defendant could say they were a victim of trauma because trauma is a very personal experience.

Another worry is that people might fake PTSD or its symptoms. As noted, PTSD is a diagnosis mainly based on symptoms a person describes, which are hard to prove objectively. The diagnosis has been criticized because it seems to rely too much on what doctors think and what patients say. In other words, it is hard to truly prove or disprove symptoms like having nightmares, flashbacks, or trying to avoid things connected to the trauma. Even proving that a traumatic event happened, especially if it was years ago, can be hard, and finding proof can be difficult. Also, just going through a traumatic event does not mean a person will get PTSD. A large study in the United States found that about 8% of people had PTSD in their lifetime, even though 61% of men and 51% of women in the study said they had experienced a traumatic event. So, many people will go through trauma, but most will not develop PTSD.

Special psychological tests can help find out if someone is faking PTSD. Tests like the M-FAST, SIRS-2, Fptsd of the MMPI-2, and PAI can all help tell the difference between real and faked cases of PTSD, but no single test is perfect.

Toward a Trauma-Informed Jurisprudence

By teaching courts about the science of PTSD, mental health experts can help the U.S. legal system move towards a system that understands the effects of trauma. It can also make sure trauma is properly considered in criminal cases. In the shorter term, the legal system might change to expect mental health experts to actively teach judges and juries about PTSD during the sentencing part of a trial.

Because PTSD can affect a defendant's responsibility in many ways, lawyers who fail to look into and plan for PTSD could be seen as ineffective. This might give convicted people a second chance through a new trial or sentencing. Such a standard could have changed the outcome of many cases discussed here. It would hold lawyers to a higher standard in looking into and arguing for lighter sentences based on trauma.

In the longer term, it is possible that strong arguments could lead to certain groups of people with PTSD or severe trauma being completely excused from the death penalty. This would be based on a legal argument similar to those used by the Supreme Court in other cases. For example, some argue that veterans with PTSD and brain injuries from their service should never face the death penalty. Others agree this is worth considering to prevent unfair executions, especially for veterans whose crimes are linked to their service and injuries.

But thinking about other types of PTSD, it would be very hard for the law to define different groups who have experienced certain types of trauma and say they should never get the death penalty. This is because even if trauma is defined by when it happened (childhood, teen years, or adulthood), what kind it was (physical, sexual, emotional, or neglect), and how long it lasted, the symptoms of PTSD are not the same for everyone. For instance, studies have shown that PTSD is less common in older adults than in the general population. Also, as noted earlier, many people go through terrible suffering but do not develop PTSD symptoms. It is also known that childhood trauma can lead to personality disorders, and PTSD symptoms can be hard to tell apart from traits of these disorders, especially with a more severe type called Complex PTSD.

Conclusion

We face a similar challenge noted by others who looked at how the death penalty is used. They found that the system cannot manage two goals at once: deciding each person's case individually and ensuring fairness across the system. In our study, there was no clear plan for checking trauma in defendants' backgrounds. The appeals process for death penalty cases did offer a way to bring up more facts about trauma that could lead to a lighter sentence. But our findings show that at the federal appeals court level, people are only likely to get help if their lawyer was extremely ineffective.

In 2008, after many of these defendants' original trials, the American Bar Association put out new rules. These rules were meant to set standards for how defense teams should work in death penalty cases to get lighter sentences. These rules tell the defense team to gather, understand, and review all written and spoken information about the client's life. The rules list all important areas of a person's life history, including mental health, history of abuse or neglect, trauma history, military experience, family history, and genetic problems.

Since these rules were published, it is not clear if they are just good ideas or if they must be followed. The Andrus v. Texas case might suggest they are just ideas, even though Mr. Andrus's trial happened around the time the rules came out.

Because defense teams have so many tasks to follow these rules, the amount of information gathering and understanding needed for death penalty defendants might be more than the resources they are given, even with a mitigation specialist.

Looking ahead, one idea to make things more balanced would be to require a clear way of reviewing all the trauma areas listed in the rules. Another idea would be for courts to more easily appoint experts to defense teams to help understand facts that could lead to a lighter sentence. For defendants with suspected PTSD, a solution could be to appoint a mental health expert to work with the defense lawyer early in the process of looking for facts for a lighter sentence. No matter how easy these ideas are to put into practice, we believe that achieving fairness for death penalty defendants means making sure there is a very thorough and thoughtful investigation into their trauma history. Without this, worries about the death penalty being unfair will continue.