Mich. Comp. Laws § 600.1333

Sec. 1333. A person who is notified to attend as a juror may apply to the chief judge of the court to be excused or have his or her term of service postponed on any ground provided in this chapter. He or she may apply in person or by a person capable of making the necessary proof of his or her claim. An entry of the action of the chief judge upon the application and of the reason for that action shall be made on the records of the court.