Michigan Compiled Laws, Chapter 436. Alcoholic Beverages § 436.1905

Sec. 905. (1) Notwithstanding section 903,  1 if a retail licensee or a retail licensee's clerk, agent, or employee violates this act by selling or furnishing alcoholic liquor to a minor, or by allowing a minor to consume alcoholic liquor or possess alcoholic liquor for personal consumption on the licensed premises, and if the enforcing agency involved in the prosecution of the violation is the state police or a local police agency, the commission shall not take any action under section 903 to suspend or revoke the licensee's license or assess an administrative fine against the licensee unless all of the following occur, if applicable:

(2) Subsection (1) does not apply if the enforcing agent involved in the prosecution is a commission inspector rather than a police agency.

(3) Subsection (1)(a) does not apply if the prosecution of the violation is the result of an undercover operation in which the minor who purchased, consumed, or received the alcoholic liquor acted under the direction of the state police or a local police agency as part of the enforcement action and such enforcement action is otherwise in compliance with section 701(4), (5), and (6).