Michigan Compiled Laws, Chapter 400. Social Services § 400.11f

Sec. 11f. (1) The state department shall not take any action pursuant to sections 11 to 11e  1 in the case of a person who is residing in a state funded and operated facility or institution, including but not limited to a correctional institution, mental hospital, psychiatric hospital, psychiatric unit, or a developmental disability regional center.

(2) The state department shall not investigate suspected abuse, neglect, or any other suspected incident pursuant to sections 11 to 11e if the department of public health has investigative and enforcement responsibility for the incident pursuant to section 20201, 21771, or 21799a of the public health code, Act No. 368 of the Public Acts of 1978, as amended, being sections 333.20201, 333.21771, and 333.21799a of the Michigan Compiled Laws. The state department shall refer a report of suspected abuse or neglect in an institution governed by those sections to the department of public health.

(3) Sections 11 to 11e do not preclude the director from entering into interdepartmental agreements to carry out the duties and responsibilities of the state department under sections 11 to 11e in state funded and operated facilities or institutions, or to coordinate investigation in state licensed facilities under contract with a state agency in order to avoid duplication of effort among state agencies having statutory responsibility to investigate.

(4) The state department and the department of attorney general shall enter into an agreement establishing criteria to be used to determine those complaints involving a facility that receives funding under title XIX of the social security act, chapter 531, 49 Stat. 620, 42 U.S.C. 1396 to 1396d, 1396f to 1396g, and 1396i to 1396s, or involving the delivery of a service funded under title XIX of the social security act, which complaints shall be referred immediately to the department of attorney general for possible investigation and prosecution.