Mich. Comp. Laws § 168.578: Primary elections; poll list, comparison of ballot number.

Sec. 578.

When a duly registered and qualified elector shall ask for a ballot as before provided, the inspector shall enter his name upon the poll list, and the number of the ballot given to the elector. The inspector receiving the ballot after the same has been voted shall, before depositing it in the box, ascertain by comparison with such list whether the ballot given to him is the same ballot furnished to the elector, and if it is not the same ballot, he shall reject it and the elector shall not be allowed to vote at such primary election.