Mich. Comp. Laws § 750.403

Sec. 403. Desertion from military service—Any commissioned officer, non-commissioned officer, musician or private who shall desert the service of the United States, or of this state, shall, unless claimed and punished under the authority and by the law of the United States, be guilty of a misdemeanor, punishable by imprisonment in the state prison for not more than 2 years; and it shall be the duty of any sheriff, undersheriff, deputy sheriff, constable, city or village marshal, to arrest any such deserter wherever he may be found in this state, whenever such officer shall have knowledge, or reasonable evidence, by affidavit, of such desertion, and shall thereupon forthwith notify the adjutant general of this state.