Mich. Comp. Laws § 455.215
The board of trustees may appoint a marshal, whose duties shall be to enforce the by-laws of said corporation. Said marshal shall have the authority of a deputy sheriff in maintaining peace and order and the enforcement of law on the lands under the jurisdiction of the corporation, and in addition thereto shall be vested with authority to make arrests, in accordance with law, for the violation of the by-laws of said corporation. Compensation of said marshal shall be fixed and paid by said corporation and the said corporation shall alone be responsible for his acts; he may be removed at any time by a majority vote of the trustees, with or without cause; in the discharge of his duties in respect to any matter that is an offense against the general laws of the state, his fees and charges shall be regulated and paid in the same manner as other officers.
MCL 455.215