Psychiatric aspects of criminal responsibility: insanity and mitigation.

Forensic psychiatry expertise may be useful to criminal courts in several ways, including evaluating competence (e.g., to stand trial, waive Miranda rights, confess, plead, represent oneself, or be sentenced), assessing responsibility for alleged criminal behavior, and clarifying mental or psychosocial factors that may mitigate criminal charges or the form and severity of punishment. This column focuses on psychiatric/psychological aspects of mitigation in criminal matters.