Mich. Comp. Laws § 28.712

Sec. 2. As used in this act: (a) "Missing senior or vulnerable adult" means a resident of this state who is 1 of the following: (i) At least 60 years of age and is believed to be incapable of returning to his or her residence without assistance and is reported missing by a person familiar with that individual. (ii) A vulnerable adult, as that term is defined in section 145m of the Michigan penal code, 1931 PA 328, MCL 750.145m, who is reported missing by a person familiar with that individual. (iii) A person who is missing and suffering from senility or a physical or mental condition that subjects the person or others to personal and immediate danger. (b) "Person familiar with the missing senior or vulnerable adult" means a missing senior's or vulnerable adult's guardian, custodian, or guardian ad litem or an individual who provides the missing senior or vulnerable adult with home health aid services, possesses a health care power of attorney for the missing senior or vulnerable adult, has proof that the missing senior or vulnerable adult has a medical condition, or otherwise has information regarding the missing senior or vulnerable adult.