(1) A person is not responsible for criminal conduct if at the time of such conduct, as a result of mental illness or intellectual disability, he lacks substantial capacity either to appreciate the criminality of his conduct or to conform his conduct to the requirements of law.
(2) As used in this chapter, the term “mental illness or intellectual disability” does not include an abnormality manifested only by repeated criminal or otherwise antisocial conduct.

Terms Used In Kentucky Statutes 504.020

  • Defendant: In a civil suit, the person complained against; in a criminal case, the person accused of the crime.
  • Mental illness: means substantially impaired capacity to use self-control, judgment, or discretion in the conduct of one's affairs and social relations, associated with maladaptive behavior or recognized emotional symptoms where impaired capacity, maladaptive behavior, or emotional symptoms can be related to physiological, psychological, or social factors. See Kentucky Statutes 504.060

(3) A defendant may prove mental illness or intellectual disability, as used in this section, in exculpation of criminal conduct.
Effective: July 12, 2012
History: Amended 2012 Ky. Acts ch. 146, sec. 120, effective July 12, 2012. — Amended 1988 Ky. Acts ch. 283, sec. 8, effective July 15, 1988. — Created 1974 Ky. Acts ch. 406, sec. 39, effective January 1, 1975.