Mich. Comp. Laws § 333.8509: Facility or individuals not subject to arrest, prosecution, or penalty.

Sec. 8509.

Except as otherwise provided in this article, a pharmaceutical-grade cannabis licensed facility that has been issued a license under this article, or any owner, operator, officer, director, partner, member, manager, or employee of the licensed facility, is not subject to arrest, prosecution, or penalty in any manner, or denied any right or privilege, including, but not limited to, civil penalty or disciplinary action by a business or occupational or professional licensing board or bureau, for the cultivation, distribution, and sale of pharmaceutical-grade cannabis under this article for use by eligible patients in the manner prescribed in this article.