Forensic psychology applies psychology to legal issues, often involving expert testimony in court. Forensic psychologists may evaluate individuals to determine competency for trial, the relationship between mental disorders and crimes or accidents, and potential for future dangerous behavior. They gather forensic histories including records and reports, conduct interviews and tests, and are expected to understand relevant legal issues. In child custody cases, forensic psychologists may evaluate families to recommend custody arrangements in the child's best interests.

1. Forensic psychology
LAW AND PSYCHOLOGY
WRITTEN BY: The Editors of Encyclopaedia Britannica
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Forensic psychology, Application of psychology to legal issues, often for the purpose of offering
expert testimony in a courtroom. In civil and criminal cases, forensicpsychologists may evaluate
individuals to determine questions such as competency to stand trial, relationship of a mental
disorder to an accident or crime, and potential for future dangerous behaviour. In addition to
conducting interviews and administering psychological tests, they usually gather a forensic history,
which includes information such as hospital records, police reports, and statements of witnesses. They
are also expected to have a grasp of relevant legal questions. In a child-custody case, a forensic
psychologist may be asked to evaluate home environments, parents, and the character of the child in
order to recommend a custody decision in the child’s best interests.
This article was most recently revised and updated by Jeannette L. Nolen, Assistant Editor.