Compiled Laws, Chapter 28. Michigan State Police § 28.589

Sec. 9. (1) Except as provided in subsection (2), the jurisdiction of law enforcement officers appointed under section 3  1 is limited to property owned or leased by the public body, wherever situated in this state, and shall extend to any public right-of-way traversing or immediately contiguous to the property. The jurisdiction of those law enforcement officers may be extended by state law governing peace officers or through deputization by a county sheriff if authorized by the governing entity.

(2) Notwithstanding subsection (1), the jurisdiction of law enforcement officers who are granted powers and authority under section 3 and are employed by a school district shall include all territory within the boundaries of the school district and all property outside the boundaries of the school district that is owned, leased, or rented by or is otherwise under the legal control of the school district that employs the public safety officers.

(3) A public law enforcement agency established under section 3 and each local law enforcement agency with which it has overlapping jurisdiction shall enter into a memorandum of understanding that establishes reasonable communication and coordination efforts between those law enforcement agencies. If the public law enforcement agency is a qualifying school district under section 2(b)(ii),  2 the memorandum of understanding shall also establish jurisdiction of the public law enforcement agency.

(4) This act does not limit the jurisdiction of state, county, or municipal peace officers.