Mich. Comp. Laws § 324.52905
A law enforcement officer having probable cause to believe that this part is being violated, including authorized employees of the department of agriculture or the department, may make inspections to determine whether this part has been violated, including the right to stop any vehicle that is transporting a plant at any time, to inspect and make copies of bills of sale or other evidence of title prescribed by the department or the department of agriculture or the federal agency that has jurisdiction, to arrest persons found to have any plants in possession in violation of this part and to impound any plants or equipment used to remove or transport the plants. Pursuant to court order, any plants or equipment impounded pursuant to this section shall be permanently seized and disposed of as required under sections 1603 and 1604. Failure to exhibit a bill of sale or other evidence of title prescribed by the department or the department of agriculture or the federal agency that has jurisdiction is prima facie evidence that a bill of sale or other evidence of title does not exist.
MCL 324.52905