Criminal Justice Articles

What does a Forensic Psychologist do?

A forensic psychologist merges the practice of clinical psychology with the criminal justice system, applying knowledge of psychology to criminals, crimes, interrogation techniques, juries, development of correctional facilities, and many other things.

Forensic psychologists do clinical work, perform evaluations and assessments, provide treatment, and act as consultants. Forensic psychologists may also analyze past behavior, evaluate present behavior, and predict future behavior.

The practice of forensic psychology may be in criminal court, civil court, family court or the prison system. The common factor is the application of principals of clinical psychology to the treatment, evaluation, and profiling of both victims and criminals, requiring a thorough knowledge of both psychology and the law.

Forensic Psychology in Criminal Court

A forensic psychologist working in the criminal court system may work with the prosecuting attorney, the defendant’s attorney, or directly with the criminal. Some functions performed by a forensic psychologist in the criminal court system may include the following:

  • Assessing the competency of a criminal to stand trial
  • Providing a psychological profile of the criminal
  • Predicting the future behavior of the criminal
  • Assessing a criminal’s sanity/insanity
  • Providing clinical treatment to incarcerated criminals
  • Evaluating the accuracy of eyewitness testimony
  • Acting as jury consultants, assessing jurors and predicting verdicts
  • Clinically treating sex offenders
  • Evaluating child witnesses

Forensic Psychology in Civil Court

A forensic psychologist working in the civil court systems may work with the victim, for the defense, or for the prosecution, acting as an expert witness and/or providing clinical treatment. Some of the tasks of a forensic psychologist in the civil court system may include:

  • Working with offenders on anger management
  • Treating an assault victim for PTSD (post-traumatic stress disorder)
  • Assessing personal injury in accident cases
  • Analyzing sexual harassment cases

Forensic Psychology in Family Court

In the family court system, the forensic psychologist may work directly with the families and/or provides expert witness testimony to the court. Some of the duties of a forensic psychologist in the family court system may include:

  • Performing child custody evaluations
  • Assessing visitation risk in divorce cases
  • Evaluating termination of parental rights
  • Mediating reconciliation (couple or family) plans
  • Assessing circumstances of child abuse
  • Providing clinical therapy to families
  • Evaluating the home, the parents, and the child in child welfare cases

Not Guilty by Reason of Insanity

The McNaughton Rule was established in 1843, during the criminal trial of an Englishman named Daniel McNaughton. It stated that an accused person could be found not-guilty by reason of insanity if, at the time he committed the crime, he had such a "defect of reason" or "disease of the mind" that he did not know right from wrong.

This rule was supplanted by the Durham Rule in 1953, during the trial of Monte Durham. This rule stated that if a crime was perpetrated as the result of a "mental disease or mental defect" the accused was not guilty of the crime.

The Model Penal Code was developed in 1972; it continued the concept of not-guilty by reason of insanity, but added the caveat that a criminal who did not have the capacity to comprehend the gravity of his crime could not be held responsible for the crime.

In 1984, the Comprehensive Crime Control Act was signed into law; it states, similarly, that to stand trial, a criminal should be free of mental illness and comprehend the nature of the crime.

A forensic psychologist works to make this determination. Evaluation of the past and present behavior and capacity of the criminal, and prediction of his future behavior all point to his ability to stand trial. If he is tried and convicted, the forensic psychologist may provide information for his sentencing, and/or may clinically treat the criminal once he has entered the penal system.

Forensic psychologists provide a valuable service to the court system and the victims who seek justice there.

Schools Offering Criminology Courses:

Matching School Ads

Kaplan University

Kaplan University is focused on recognizing the achievements of military and veteran students and offers the flexibility of an online education.


  • BS in Criminal Justice - Forensic Psychology

Request Info

Grand Canyon University

Develop your knowledge of human behavior and earn your bachelor's or master's in psychology degree online with GCU.


  • Graduate Certificate of Completion in Forensic Psychology

Request Info

The Chicago School of Professional Psychology

Pursue a certificate, master, or doctorate degree in Psychology at The Chicago School for Professional Psychology


  • M.A. in Forensic Psychology: Non-Licensure Track

Request Info

Argosy University

Argosy University offers doctoral, master's, and bachelor's degree programs to students through its eight colleges.


  • Forensic Psychology (MA) (Online)

Request Info

Walden University

5 minutes


  • M.S. in Clinical Mental Health Counseling - Forensic Counseling
  • Ph.D. in Psychology - Forensic Psychology
  • M.S. in Forensic Psychology - Psychology and Legal Systems
  • And more...

Request Info

Kaplan University - KHE

At Kaplan University, we offer over 180 degree and certificate programs.


  • Bachelor of Science in Criminal Justice : Forensic Psychology

Locations: Omaha , Urbandale , Augusta , More...
Request Info

Keiser University Campus

Since 1977, Keiser University has maintained a practical, hands-on approach to career education to help our students achieve their personal and professional goals.  Our student-centered approach remains at the foundation of the Keiser University mission and continues to attract students who prefer a more personal learning experience. 


  • Master of Science in Organizational Psychology

Locations: Tallahassee , Pembroke Pines , Tampa , More...
Request Info

Miller-Motte College

Start the next chapter of your life with an Associate or Bachelor degree from Miller-Motte College Online Division.


  • Medical Clinical Assistant - Diploma

Locations: Jacksonville , Wilmington
Request Info

City College

City College of Florida is focused on providing the best in business and career education.


  • Mental Health Technology

Locations: Gainesville
Request Info

National Louis University

National Louis University is one of the oldest and most progressive universities in Chicago.


  • M.S. in Industrial and Organizational Psychology

Request Info
Matching School Ads