Mich. Comp. Laws § 288.492: Inspecting, sampling, and investigating conditions; authority of director to enter premises or vehicles.

Sec. 22.

The director, after proper identification, is authorized and has the power to enter all dairy farms, milk plants, single service manufacturing facilities, milk tank truck cleaning facilities, receiving stations, transfer stations, distribution facilities, vehicles used to transport milk and milk products, and single service manufacturers under its jurisdiction for the purpose of inspecting, sampling, and investigating conditions relating to the enforcement of this act.