Michigan Compiled Laws, Chapter 330. Mental Health Code § 330.1537

Sec. 537. (1) An individual is subject to being returned to a facility if both of the following are true:

(2) The facility may notify a peace officer that an individual is subject to being returned to the facility. Upon notification, a peace officer must take the individual into protective custody. After the individual is taken into protective custody, a peace officer or a security transport officer must return him or her to the facility unless contrary directions have been given by the facility or the responsible community mental health services program.

(3) An opportunity for appeal must be provided to any individual returned over their objection from any authorized leave in excess of 10 days, and the individual must be notified of the right to appeal. In the case of a child less than 13 years of age, the appeal must be made by the child's parent or guardian.