Mich. Comp. Laws § 4.354

Sec. 4. (1) The ombudsman may commence an investigation upon either of the following: (a) Receipt of a complaint from a prisoner, a legislator, or on the ombudsman's own initiative, concerning an administrative act that is alleged to be contrary to law or contrary to departmental policy. (b) The ombudsman's own initiative for significant prisoner health and safety issues, correctional facility security, and public safety, and other matters for which there is no effective administrative remedy. (2) Subject to approval of the council, the ombudsman shall establish procedures for receiving and processing complaints, conducting investigations, holding hearings, and reporting the findings resulting from the investigations.