Mich. Comp. Laws § 600.2411

Sec. 2411. In the following actions, if the defendant prevails, he shall be awarded costs and in addition, 1/2 thereof: (1) In actions against public officers appointed or elected under the laws of this state, or against any person specially appointed according to law to execute the duties of such public officer, for or concerning the omission to do any act which it was his official duty to perform. (2) In actions against any other person for doing any act by the commandment of such officers or persons, or in their aid or assistance, touching the duties of such office or appointment. (3) In actions against any person for making any sale or doing any other act by authority of any statute of this state.