Insanity Defense
A legal concept that an accused is not criminally responsible if, at the time of committing the act, the person was laboring under such a defect of reason from disease of the mind as not to know the nature and quality of the act done or if the act was known, to not have known that what was done was wrong. (From Black's Law Dictionary, 6th ed)
Forensic Psychiatry
Psychiatry in its legal aspects. This includes criminology, penology, commitment of mentally ill, the psychiatrist's role in compensation cases, the problems of releasing information to the court, and of expert testimony.