Mental disease or defect
Applied in 60 court decisions — leading case Schiro v. Indiana (1989)
Most recently applied in 140 S. Ct. 1021 - Kahler v. Kansas (March 2020)
As added by Acts 1976, P.L.148, SEC.1
Court decisions citing this, by year. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
Sec. 6. (a) A person is not responsible for having engaged in prohibited conduct if, as a result of mental disease or defect, he was unable to appreciate the wrongfulness of the conduct at the time of the offense.
(b) As used in this section, "mental disease or defect" means a severely abnormal mental condition that grossly and demonstrably impairs a person's perception, but the term does not include an abnormality manifested only by repeated unlawful or antisocial conduct.
Official source: Indiana General Assembly. Reproduced from public-domain Indiana statutes; confirm against the official source for the current text. Not legal advice.