Mich. Comp. Laws § 462.381: Railroad police officer; wearing and receiving badge.

Sec. 381.

A railroad police officer appointed and commissioned under this act, when on duty as provided in this act, shall wear a metallic badge with the word "police" and the name of the railroad company for which the railroad police officer is appointed inscribed on the badge, and he or she shall exhibit the badge on demand and before making an arrest.