Mich. Comp. Laws § 18.1264

Sec. 264. The department may debar a vendor from participation in the bid process and from contract award upon notice and a finding that the vendor is not able to perform responsibly, or that the vendor, or an officer or an owner of a 25% or greater share of the vendor, has demonstrated a lack of integrity that could jeopardize the state's interest if the state were to contract with the vendor.