Sec. 29a. (1) 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 sections 400a and 500(g) of Act No. 258 of the Public Acts of 1974 and in section 21a of chapter 8 of this act. (2) At the conclusion of the trial, where warranted by the evidence, the charge to the jury shall contain instructions that it shall consider separately the issues of the presence or absence of mental illness and the presence or absence of legal insanity and shall also contain instructions as to the verdicts of guilty, guilty but mentally ill, not guilty by reason of insanity, and not guilty with regard to the offense or offenses charged and, as required by law, any lesser included offenses.
Mich. Comp. Laws § 768.29a
Defense of insanity in criminal action tried before jury; instructions
Applied in 24 court decisions — leading case People v. Grant (1994)
Most recently applied in People v. Shahideh (December 2008)
Add. 1975, Act 180, Eff
How often courts cite this section
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.
Official source: Michigan Legislature. Reproduced from public-domain Michigan statutes; confirm against the official source for the current text. Not legal advice.