Mich. Comp. Laws § 730.262

Sec. 12. All persons who are exempt from service on juries in the circuit courts of this state shall be exempt from service on juries in justice courts of cities adopting this act. Likewise all persons who are entitled to be excused from service on juries in circuit courts in this state shall be entitled to be excused from service as jurors in justice courts in cities adopting this act. In such cases the same proceedings shall be taken as in circuit courts.