Mich. Comp. Laws § 285.5
The state department of agriculture shall foster and promote in every possible way the agricultural interests of this state; shall cooperate with agricultural agencies in the different counties of the state and of the federal government; shall foster direct trading between the producer and consumer; and shall prevent, and assist in preventing, by all available means authorized by law, the sale of unimproved lands and lands not suitable for agricultural development within the state by fraud, misrepresentation, or deceit and the publication of false or misleading statements or advertising matter designed to effect such sales. The powers and duties imposed by this act on the state department of agriculture shall be exercised and performed under the supervisory control of the state administrative board.
MCL 285.5