Michigan Compiled Laws, Chapter 445. Trade and Commerce § 445.486

(a) Knowingly receive or purchase a precious item from any person who is less than 18 years of age or any person known by the dealer or agent or employee of the dealer to have been convicted of theft or receipt of stolen property within the preceding 5 years, whether the person is acting in his or her own behalf or as the agent of another.

(b) Knowingly receive or purchase a precious item from a person unless that person presents a valid driver's license or a valid state of Michigan personal identification card.