Mich. Comp. Laws § 722.682

Sec. 12. (1) Except as provided in this section, sections 9 to 11 shall not preclude or impair prosecution for violation of any law of this state. (2) If a declaratory judgment has been obtained pursuant to sections 10 and 11, or an application for an injunction pursuant to section 9 has been denied, on the ground that the knowing dissemination to a minor of specified matter does not violate section 5, that determination is a complete defense for a person against a prosecution under section 5 based upon the dissemination of that specified matter and against a prosecution for violation of a preliminary injunction or restraining order granted pursuant to section 11. (3) If a prosecuting attorney issues an advisory opinion stating in unequivocal terms that knowing dissemination of specified matter to a minor is not considered by the prosecuting attorney to violate section 5, then the recipient of the opinion may be prosecuted under section 5 for the dissemination of that specified matter only after the prosecutor has both withdrawn the opinion and obtained an injunction pursuant to section 9 against the dissemination of that specified material by that person. (4) A declaratory judgment or injunction shall apply only to the county in which the prosecuting attorney serves.