Michigan Compiled Laws
Mich. Comp. Laws § 330.1400a (2026)
Repealed. 1995, Act 290, Eff. Mar. 28, 1996.
✓ current as of July 2026
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MENTAL HEALTH CODE
Act 258 of 1974
330.1400a Repealed. 1995, Act 290, Eff. Mar. 28, 1996.
Repealed. 1995, Act 290, Eff. Mar. 28, 1996.
Compiler's Notes:
The repealed section pertained to “mental illness” defined.
Notes of Decisions
Cited in 41
cases, 1978–2019 · leading case: People v. Grant, 520 N.W.2d 123 (Mich. 1994).
People v. Grant, 520 N.W.2d 123 (Mich. 1994). “1052(1)(1) provides: If the defendant asserts a defense of insanity in a criminal action which is tried before a jury, the judge shall, before testimony is presented on that issue, instruct the jury on the law as contained in [MCL 330.1400a; MSA 14.800(400a)] and [MCL *542 330.”
People v. Toma, 613 N.W.2d 694 (Mich. 2000). “258 of the Public Acts of 1974, being section 330.1400a of the Michigan Compiled Laws, or as a result of being mentally retarded as defined in section 500(h) of the mental health code, Act No.”
People v. Furman, 404 N.W.2d 246 (Mich. Ct. App. 1987). “Mental illness is defined in MCL 330.1400a; MSA 14.800(400a): As used in this chapter, "mental illness" means a substantial disorder of thought or mood which significantly impairs judgment, behavior, capacity to recognize reality, or ability to cope with the ordinary demands of…”
People v. Ramsey, 375 N.W.2d 297 (Mich. 1985). “Finally, mental illness is defined in MCL 330.1400a; MSA 14.800(400a) as: [A] substantial disorder of thought or mood which significantly impairs judgment, behavior, capacity to recognize reality, or ability to cope with the ordinary demands of life.”
People v. Webb, 580 N.W.2d 884 (Mich. 1998). “§ 330.1400a; M.S.A. § 14.800(400a)], that person lacks substantial capacity either to appreciate the wrongfulness of his conduct or to conform his conduct to the requirements of law.”
People v. Mangiapane, 271 N.W.2d 240 (Mich. Ct. App. 1978). “This amendatory act shall not take effect unless House Bill No. 4362 of the 1975 Regular Session of the legislature is enacted into law.”
People v. Hayes, 364 N.W.2d 635 (Mich. 1985). “Since these definitions were created by statute, the Legislature's limitations of the circumstances within which they apply do not necessarily raise questions of constitutional proportions. In MCL 768.”
People v. Anderson, 421 N.W.2d 200 (Mich. Ct. App. 1988). “21a; MSA 28.1044(1), which provides: (1) A person is legally insane if, as a result of mental illness as defined in section 400a of Act No.”
People v. Conrad, 385 N.W.2d 277 (Mich. Ct. App. 1986). “' MCL 330.1400a; MSA 14.800(400a). A person is insane, however, only if that substantial impairment results in the lack of `substantial capacity either to appreciate the wrongfulness of his conduct or to conform his conduct to the requirements of law.”
People v. Lloyd, 590 N.W.2d 738 (Mich. 1999). “§ 330.1400a; MSA 14.800(400a) ] ..., that person lacks substantial capacity either to appreciate the nature and quality or the wrongfulness of his or her conduct or to conform his or her conduct to the requirements of the law.”
People v. Murphy, 331 N.W.2d 152 (Mich. 1982). “258 of the Public Acts of 1974, being section 330.1400a of the Michigan Compiled Laws, or as a result of mental retardation as defined in section 500(g) of Act No.”
People v. McLeod, 288 N.W.2d 909 (Mich. 1980). “" MCL 330.1400a; MSA 14.800(400a). Once a defendant is found guilty but mentally ill, MCL 768.”
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