Michigan Compiled Laws, Chapter 408. Labor § 408.403

Sec. 3. Any individual, firm, agent of any corporation, or other employers of labor who shall take any unlawful advantage of any person or persons in their employ, or seeking employment, because of their poverty or misfortune, to invalidate any of the provisions of the preceding section, shall be deemed guilty of a misdemeanor, and, upon conviction thereof, shall be fined not less than $5.00, nor more than $50.00 for each offense, and it shall be the duty of the prosecuting attorney of the county in which such offense was committed, upon receiving complaint, to prosecute all such cases in the name of the people of the state of Michigan.