Mich. Comp. Laws § 28.253

Sec. 3. Any governmental police agency, not falling within the description of those required to submit the monthly uniform crime report set forth in section 1, which desires to submit such a report, shall be furnished with the proper forms by the department of state police. When a report is received by the department of state police from a governmental police agency not required to make such report, the information contained therein shall be included within the monthly compilation provided for in section 2.