Mich. Comp. Laws § 600.8831

Sec. 8831. (1) A civil fine which is ordered under section 8827 for a violation of state statute shall be exclusively applied to the support of public libraries and county law libraries in the same manner as is provided by law for penal fines assessed and collected for violation of a penal law of the state. (2) Subsection (1) is intended to maintain a source of revenue for public libraries which previously received penal fines for misdemeanor violations of state statute which are now designated state civil infractions.