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Using psychological science to help answer legal questions From Wikipedia, the free encyclopedia
Forensic psychology is the application of scientific knowledge and methods (in relation to psychology) to assist in answering legal questions that may arise in criminal, civil, contractual, or other judicial proceedings.[1][2][3] Forensic psychology includes research on various psychology-law topics, such as: jury selection, reducing systemic racism in criminal law, eyewitness testimony, evaluating competency to stand trial, or assessing military veterans for service-connected disability compensation.[4] The American Psychological Association's Specialty Guidelines for Forensic Psychologists reference several psychology sub-disciplines, such as: social, clinical, experimental, counseling, and neuropsychology.[5]
As early as the 19th century, criminal profiling began to emerge, with the Jack the Ripper case being the first instance of criminal profiling, by forensic doctor and surgeon Thomas Bond.[6] In the first decade of the 20th century, Hugo Münsterberg, the first director of Harvard's psychological laboratory and a student of Wilhelm Wundt, one of the first experimental psychologists,[2][7] authored On the Witness Stand.[2][8] In the publication, Münsterberg attempted to demonstrate how psychological research could be applied in legal proceedings.[9] Sigmund Freud also discussed how psychopathological processes play a role in criminal behavior.[2] Other significant early figures in forensic psychology include Lightner Witmer, and William Healy.[10]
In 1917, the lie detector was invented by the psychologist William Marston.[11][12] Six years after its invention, Marston brought his lie detector to court in the case of Frye v. United States at the request of James A. Frye's attorneys, who hoped Marston's device would prove their client's innocence. The results were not deemed admissible, due to lie detection not being widely accepted in the scientific community. This led to the creation of the Frye standard, which states scientific evidence is only admissible when it has prominent standing within the scientific community.[13]
The 1954 case of Brown v. Board of Education of Topeka,[14] was the first where the Supreme Court of the United States referenced expert opinions by psychologists.[15] After this, the preponderance of psychological mechanisms within courtrooms began to be considered beneficial.[15] Several years after the Brown ruling, Justice David Bazelon of the D.C. Circuit Court of Appeals ruled that psychologists had the legal authority to testify as medical experts about mental illness.[3][15][16]
In 1969, the American Psychology–Law Society was founded, later being converted into Division 41 of the APA in 1980.[15] As the field continued to grow, more organizations supported the application of psychology to the law. In 1976, the American Board of Forensic Psychology was chartered, eventually becoming part of the American Board of Professional Psychology in 1985.[15] Organizations and conferences later aided in solidifying the development of forensic psychology, such as the American Academy of Forensic Psychology and the National Invitational Conference on Education and Training in Forensic Psychology.[15][17] By 2001, forensic psychology was recognized as a professional specialty by the American Psychological Association.[15]
In 1993, the case of Daubert v. Merrell Dow Pharmaceutical[18] introduced the standard of admissibility when an expert witness is on the stand. The case started after the parents of Jason Daubert and Eric Schuller, sued Merrell Dow Pharmaceuticals after their children were born with serious birth defects due to a drug called Bendectin. After moving the case to federal court, then Merrell Dow moved for summary judgement when they submitted documents show that there was no published scientific study demonstrating any links between the drug Bendectin and birth defects. Then Daubert and Schuller submitted expert evidence as well, showing that Bendectin did cause birth defects, based on in vitro and in vivo animal studies, pharmacological studies and reanalysis of other published studies. At the time of the case these methodologies of evidence were not considered to be acceptable. The summary judgement was granted to Merrell Dow, the parents appealed to the Ninth Circuit. The Ninth Circuit had only granted summary judgment because the plaintiffs' proffered evidence that were accepted as a reliable technique by scientist. The reason it was granted to Merrell Dow was because at the time of the case the Frye standard was considered the correct standard of evidence. This Daubert standard eventually became the standard used by the U.S. Supreme Court. The standard is considered to be a part of the Federal Rules of Evidence, this also includes the admissibility of evidence as well. The Supreme Court reversed, and remanded the case to the Ninth Circuit Court of Appeals. Through the remand, the court was able to analyze the evidence presented under the new standard and decided to uphold the district court's original grant of summary judgement for the defendant.[19] Because of this case ruling the Daubert standard was considered by the U.S. Supreme Court, the old Frye standard while being used more by most states, has been slowly overturned and no longer referencing to it.
Modern forensic psychological research applies psychological methodology to legal contexts. In the 1980s, Saul Kassin, a psychology professor at the John Jay College of Criminal Justice in New York, published a series of papers on false confessions. One of Kassin's articles was instrumental in overturning the convictions of five boys who had been falsely convicted of the rape of a jogger.[20] At the University of Liverpool, David V. Canter is credited with the creation of the term investigative psychology, a sub-specialization of forensic psychology that pertains to of criminal behavior and the investigative process.[11] Through the psychological profiling of the Railway Rapists, Canter assisted in the capture of the killers.[21] The 20th-century psychologist William Stern, conducted numerous experiments on eyewitness testimony, credibility, consistency, and the influence of leading questions in court.[22][23]
Recently, forensic psychology has grown in popularity in the media. For example, many recent docuseries on Netflix feature forensic psychological content, including Making a Murderer and Sins of our Mother. Other TV shows and movies such as Criminal Minds, Manhunter, Mindhunter, and Silence of The Lambs have widely popularized the practice of criminal profiling, particularly within the Federal Bureau of Investigation's (FBI) Behavioral Analysis Unit (BAU).[24] One example of a highly publicised case that used forensic psychology was Ted Bundy's sentencing.[25] In 1980, he went to trial and was evaluated by multiple psychology professionals to determine his ability to stand before the court.[26] The results from the multiple psychologist evaluations determined that Ted Bundy was fit to stand before the court.[26]
Forensic psychology involves both elements of basic as well as applied work. Forensic psychologists may hold a PhD or Psy.D. in clinical psychology, counseling psychology, social psychology, organizational psychology, school psychology, or experimental psychology under accredited institutions.[27] Additionally, two years of supervised experience in their field is necessary.[27] There are no specific license requirements in the United States to be a forensic psychologist, although U.S. states, territories, and the District of Columbia require licensure for psychologists in the state they intend to practice.[2] Certification specifically in forensic psychology is also available.[2]
There are 67 forensic psychology degree programs offered in the US. Average tuition cost for an undergraduate is $7,687 in-state and $26,401 out-of-state. For a graduate, the average tuition cost is $11,167 in-state and $20,272 out-of-state.[28]
There is a wide range of pay for individuals in the forensic psychology field.[29] In the United States, the median annual income of clinical-forensic psychologists is $125,000 - $149,999, and the pay can range from $50,000 (entry-level) a year to more than $350,000 a year.[30]
As of 2023, the U.S. Bureau of Labor Statistics, has seen a 7% rise in psychologist employment, which is faster than average, and there has been 207,500 new jobs for psychologists.[31]
Forensic psychology may be utilized in five major areas (police and public safety, law, crime and delinquency, victimology and victim services, and corrections) and two sub-areas (family and schools).[11]
Forensic psychologists complete evaluations and assessments to assess a person's psychological state for legal purposes.[32][33] Reasons for completing these evaluations can involve acquiring information for criminal court (such as insanity or incompetence), for criminal sentencing or parole hearings (often regarding a potential intellectual disability that prevents sentencing or one's risk of recidivism), for family court (including child custody or parental termination cases), or civil court (involving, for example, personal injury, competence to manage one's financial affairs, and psychological autopsies especially as related to testamentary capacity).[34][35] Additional assessments that these professionals can perform include school threats.[27] Forensic psychologists also usually have to participate in court as a witness and assist judges, attorneys, or other court personnel in legal matters. This gives them the opportunity to help out as much as they can.[36] There is great debate about whether these Forensic Psychological evaluations constitute as health care treatment, with most arguments claiming they do not.[37] A forensic psychologist is responsible for assessing and reporting results of an evaluation, but does not make decisions on "ultimate issues", such as competence to stand trial or service-connected disability for U.S. military veterans.[38][39] Instead, the information provided by the expert evaluator is analyzed and is ruled on by the court which ordered the evaluation to take place.[39]
Forensic psychologists may be asked to administer psychological interventions to those requiring or requesting services in both criminal and civil cases. Regarding criminal cases, forensic psychologists can work with individuals who have already been sentenced to reduce the likelihood of repeating their offense. Other treatments are frequently put together in these case, especially for substance use disorder, sex offenders, mental illness, or anger management.[34] As for civil proceedings, forensic psychology treats families going through divorce cases, custody cases, and psychological injuries due to trauma. Treatment often occurs in forensic and state psychiatric hospitals, mental health centers, and private practices.[40]
Providing consultations allows forensic psychologists to apply psychological expertise and research to help law enforcement, attorneys, and other legal professionals or proceedings better understand human behavior (e.g. criminal, witness, victim, jury), civil processes, effects of trauma or other life events, and so on.[41] If working as a consultant, a forensic psychologist can be involved in legal proceedings through responsibilities such as reviewing court records (such as a defendant's psychosocial history or assessing mitigating or aggravating factors in a case), serving as a jury consultant (organizing focus groups, shadow juries, mock juries, or helping with the voir dire proceedings), and assessment without testimony (in which results of a defendant's evaluation are not disclosed to the prosecution team, allowing the defense team to develop a defense strategy), among others.[41][42] Essentially, consultations can take many forms, including the common ones below:
Expert testimony about matters relating to psychology is also an area in which forensic psychologists play an active role.[50][34] Unlike fact witnesses, who are limited to testifying about what they know or have observed, expert witnesses can express further knowledge of a situation or topic because, as their name suggests, they are presumed to be "experts" in a certain topic and possess specialized knowledge about it.[51] The requirements that must be met for forensic psychologists to be considered expert witnesses include clinical psychology expertise and knowledge of the laws that have jurisdiction over the court they are to testify.[52] Procedural and legal rules guide expert testimony, including that the evidence must be relevant to the case, the method the expert used must be valid and reliable, and that the evidence will help the trier of fact.[50] An expert can be deposed by opposing counsel to discover what they plan to say in court. Attorneys have the opportunity to raise a challenge to the admissibility of the expert's testimony if there are questions about its relevance, or its validity and reliability (in the United States - the rules vary by country and jurisdiction).[50] Regardless of who calls in the expert, it is the judge who determines whether or not the expert witness will be accepted through a voir dire process of qualification.[43]
Forensic psychology researchers make scientific discoveries relevant to psychology and the law and sometimes provide expert witness testimony.[34][3] These professionals usually have an advanced degree in psychology generally a PhD or similar. These professionals may be employed in various settings, such as: colleges and universities, research institutes, and government, private, or mental health agencies.[53] Researchers test hypotheses empirically regarding issues related to psychology and the law, such as jury research and research on mental health law and policy evaluation.[53] Their research may be published in forensic psychology journals such as Law and Human Behavior or Psychology, Public Policy, and Law, and more broadly, in basic psychology journals. Some famous psychologists in the field include Scott Lilienfeld, who was widely known for his scholarship on psychopathology and psychopathy; Saul Kassin, who is known for studying false confessions; Jennifer Skeem, who is known for studying justice-involved people with mental illness; Michael Saks, who is known for his contributions to jury research and improvements to forensic science; Barbara Spellman, who is known for her cognitive psychology-law work as well as for her open science leadership; and Elizabeth Loftus and Gary Wells, who are both known for their research on eyewitness memory.
Academic forensic psychologists teach, research, train, and supervise students, among other education-related activities. These professionals also have an advanced degree in psychology (most likely a PhD) and are most often employed at colleges and universities. In addition to holding professorships, forensic psychologists may engage in education by presenting research, hosting talks about a particular subject, or engaging with and educating the community about a relevant forensic psychology topic.[34]
Through advocacy, forensic psychologists can use psychological research to influence laws and policies. These may be related to certain movements, such as Black Lives Matter or the Me Too movement, or may even be related to certain civil rights that are being overlooked.[54]
Competence, in a legal setting, refers to the defendant's ability to appreciate and understand the charges against them and what is happening in the legal proceedings, as well as their ability to help the lawyer understand and defend their case.[43] Though it is the psychologist's responsibility to assess for competence, it is ultimately up to the judge to decide whether the defendant is competent or not. If the defendant is found incompetent to stand trial, the psychologist must then give a recommendation on whether or not the defendant can be restored to competence through treatment or if the charges should be dropped completely due to incompetence. Potential causes of incompetence include brain damage, the occurrence of a psychotic episode, a mental disorder, or a developmental disability.[55][38][56]
Multiple cases have helped define competence. In Dusky v. United States (1960), the case upheld the Youtsey v. United States ruling and set specific criteria for competence. These include having a rational and factual understanding of court proceedings and being able to consult with an attorney in a rational manner.[57]
Insanity, as opposed to competence, refers to an individual's mental state at the time of the crime rather than at the time of the trial.[34][43] According to legal principles of insanity, it is only acceptable to judge, find someone criminally responsible, and punish a defendant if that individual was sane at the time of the crime. In order to be considered sane, the defendant must have exhibited both mens rea and actus reus. Mens rea, translated to "guilty mind", indicates that the individual exhibited free will and some intent to do harm at the time of the crime. Actus reus refers to the voluntary committing of an unlawful act.
The insanity defense acknowledges that, while an unlawful act did occur, the individual displayed a lack of mens rea.[57] The burden of proof in determining if a defendant is insane lies with the defense team. A notable case relating to this type of assessment is that of Ford v. Wainwright, in which it was decided that forensic psychologists must be appointed to assess the competency of an inmate to be executed in death penalty cases.[58][59]
There are various definitions of insanity acknowledged within the legal system.[34] The M'Naghten/McNaugton rule (1843) defines insanity as the individual not understanding the nature and quality of his or her acts or that these acts were wrong due to a mental disease or defect. This is also referred to as the cognitive capacity test. Meanwhile, the Durham Test (established in Durham v. United States, 1954) states that one can be declared insane if the actions were caused by a mental disorder. The vague nature of this description causes this definition to only be used in one state (New Hampshire). The final definition acknowledged within the courts is the Brawner Rule (U.S. v. Brawner, 1972), also referred to as the American Law Institute Standard. This definition posits that, due to a mental disease or defect, an individual is considered insane if unable to appreciate the wrongfulness of an act and are unable to conform their behavior to the dictates of the law.[57]
Evaluating insanity involves using crime scene analysis to determine the mental state at the time of the crime, establishing a diagnosis, interviewing the defendant and any other relevant witnesses, and verifying impressions of the defendant.[54]
Criteria for insanity can vary by state. State standards for the insanity defense https://psycholegalassessments.com/areas-of-expertise/criminal-responsibility-or-sanity-at-the-time-of-the-offense/
Violence risk assessment evaluates how dangerous an individual is and the risk of them re-offending, also referred to as recidivism.[60] Risk assessments are used in sentencing and affect the possibility of an inmate receiving parole or being released from prison.[60] Imposition of the death penalty often requires a consideration of "future dangerousness," for which risk assessment can play a vital role.[60]
Although there are many advocates for the use of risk assessment in sentencing, there are others who question whether risk assessments are accurate enough to be relied upon when making these consequential legal decisions.[60] Risk assessment, as with any attempt to understand future behavior, is very difficult, especially because "risk" isn't always defined the same way in different legal settings. There is a wide research literature on risk assessment, but the information is varied and sometimes contradictory, and bias can play a role in risk assessment.[60]
While insanity and competency assessments are among the most common criminal assessments administered within the legal system, there are several other types implemented. Some of these include death penalty case assessments, assessments of child sexual abuse, assessments for child custody or divorce cases, civil court assessments, and immigration/asylum cases.[55][67]
A forensic psychologist's interactions with and ethical responsibilities to the client differ widely from those of a psychologist dealing with a client in a clinical setting.[57]
The ethical recommendations and expectations outlined for forensic psychology specifically are listed in the APA's Specialty Guidelines for Forensic Psychology.[5] These guidelines involve reminders that forensic psychologists should value integrity, impartiality, and fairness, as well as avoid conflicts of interest when possible. These conflicts of interest may arise in situations in which the psychologist is working as a consultant to one side or another in a court case, when the psychologist is required to testify or evaluate something that collides with their own beliefs or values, or when a psychologist is faced with the decision of choosing between playing the role of an individual's evaluator or treatment provider in a case.[34] This final conflict of interest also relates to the ethical guidelines relating to having multiple relationships with clients.[5] As a standard of ethics, forensic psychologists are expected to offer a certain amount of reduced fee or pro bono services for individuals who may not be able to afford hiring a psychologist for a court case otherwise. Other ethical guidelines involve receiving informed consent from clients before communicating information regarding their treatment or evaluations, respecting and acknowledging privacy, confidentiality, and privilege among clients, remaining impartial and objective when involved in a trial, and weighing the moral and ethical costs of complying with any court orders that may conflict with professional standards.[54][55][72] Forensic Psychologists are required to work within the limitations of their competence, as determined by their education, training, supervised experiences, consultation, research, or professional experience.[73]
An example of skewed ethics in forensic psychology would be the different tests used to measure the command of authority. Two very infamous cases of this would be the Stanford Prison Experiments and the Milgram experiment. The Stanford Prison Experiment put college aged students into a prison simulation where they were randomly assigned to fulfill the role of either “guards” or “prisoners”[74] This case was found to be unethical because it was found to be harmful to the participant past what should have been allowed. [75] Stanley Milgram conducted research on how far people would go to obey authority figure if another person was harmed in the process. How the situation influenced the individual proves as a way to draw conclusions about the individual and their upbringing. Forensic psychology finds this information useful to know when and how authority can affect a situation, but mostly to know the boundaries that research can be pushed and when something is deemed unethical.[76]
Consent plays a large role in Forensic Psychology. Informed consent is required for psychologists, and when services are required by law or another authority, psychologists must inform the individual of the nature of the anticipated services, including whether the services are court ordered or mandated and any limits of confidentiality, before proceeding, according to the APA ethics code 3.10(c).[77] Additionally, standard 3.10(d) stipulates that consent needs to be well documented.[77] Both the individual in question and the council that is representing them must provide their approval.[73] If the person is legally unable to give their own consent then legal counsel for that individual must be sought. The person must be informed by the Forensic Psychologist of all the various guidelines pertaining to the expected services, including the extent of confidentiality.[73]
A forensic psychologist's primary responsibility is to safeguard their clients anonymity by taking appropriate measures and communicating any limitations, the client is trusting them to keep all topics discussed with them confidential.[73] Only the clients or legally authorized person's consent may be disclosed; without the clients consent, disclosure may only occur when required by law, when the psychologist utilizes the information for the clients protection or consultation, or both.[73]
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