Direct or indirect interest in state contracts prohibited.

Mich. Comp. Laws § 15.302, under CONFLICT OF INTEREST.

Mich. Comp. Laws § 15.302

Sec. 2. No member of the legislature, herein referred to as a "legislator", nor any state officer shall be interested directly or indirectly in any contract with the state or any political subdivision thereof which shall cause a substantial conflict of interest.