Michigan Compiled Laws, Chapter 8. Statutes § 8.4a

Sec. 4-a. The repeal of any statute or part thereof shall not have the effect to release or relinquish any penalty, forfeiture, or liability incurred under such statute or any part thereof, unless the repealing act shall so expressly provide, and such statute and part thereof shall be treated as still remaining in force for the purpose of instituting or sustaining any proper action or prosecution for the enforcement of such penalty, forfeiture or liability.