Michigan Compiled Laws, Chapter 14. Attorney General § 14.102

Sec. 2. Any action at law brought by the attorney general in the name of the state or of the people of the state, for the use and benefit thereof, may be begun in the circuit court in and for the county of Ingham, and may be prosecuted to final judgment and satisfaction thereof, with like effect as though the cause of action arose in such county. In any such case process issued out of and under the seal of said court may be served anywhere within the state of Michigan.