Mich. Comp. Laws § 330.1283

Sec. 283. An individual taken to or seeking voluntary admission under section 281 to an emergency medical service or a transfer facility or a respondent under an order that is issued under section 281b or 281c shall have his or her possessions inventoried and held in a secure place. These possessions shall be returned to the individual when the individual is released. Contraband discovered in the inventory shall not be returned to the individual.