Compiled Laws, Chapter 168. Michigan Election Law § 168.738

Sec. 738.(1) Before leaving the booth or voting compartment, the elector shall fold his or her ballot or each of the ballots so that no part of the face shall be exposed, and with the detachable corner on the outside.Upon leaving the booth, the elector shall at once deliver in public view the ballot or ballots to the inspector designated to receive the ballot or ballots.Except as provided in subsection (2), the inspector shall tear off the corner of the ballot, where perforated, containing the number and shall then in the presence of the elector and the board of inspectors deposit each ballot in the proper ballot box without opening the ballot.

(2) If an elector shows his or her ballot or any part of the ballot to any person other than a person lawfully assisting him or her in the preparation of the ballot or a minor child accompanying that elector in the booth or voting compartment under section 736a, 1 after the ballot has been marked, to disclose any part of the face of the ballot, the ballot shall not be deposited in the ballot box, but shall be marked “rejected for exposure”, and shall be disposed of as are other rejected ballots.If an elector exposes his or her ballot, a note of the occurrence shall be entered on the poll list opposite his or her name and the elector shall not be allowed to vote at the election.