Michigan Compiled Laws, Chapter 800. Prisons § 800.322

(a) “Correctional industries products” means all services provided, goods, wares, and merchandise manufactured or produced, wholly or in part, by inmates in any state correctional institution, but does not include either of the following:

(b) “Correctional institution” means a state prison, prison facility, or other prison institution, correctional camp, community corrections center, correctional farm, state reformatory, or probation recovery camp, owned, operated, leased, supervised, or contracted for by this state.