Mich. Comp. Laws § 168.151

Sec. 151. Said application shall be made by sworn petition setting up the material facts touching the election and the election contest involved. It may be heard in chambers or in open court, in the discretion of the court, and it shall be heard upon such notice as will be sufficient to give the attorney of the party not applying for the order sufficient time to reach the court in which such application is made, by the usual method of travel from his place of business to such court, plus 24 hours.