Mich. Comp. Laws § 47.12: Board of county auditors; county prosecuting attorney as legal advisor, duties.

Sec. 12.

The prosecuting attorney for the said county shall, without any compensation other than his regular salary, be the legal advisor of said board of auditors and shall, on the request of any member thereof, render an opinion in writing on the legal status of any bill pending before said board, and shall on his motion, investigate the findings of said board, whenever in his opinion, the public service will be benefited thereby, and shall institute criminal proceedings against the members of said board or any of them, for malfeasance or misfeasance in office.