Mich. Comp. Laws § 207.219: Books, invoices, receipts, records, and papers of motor carrier, fuel supplier, or alternative fuel dealer; examination.

Sec. 9.

The department may examine the books, invoices, receipts, records, and papers of a motor carrier, fuel supplier, or alternative fuel dealer that pertain to the motor fuel or alternative fuel received, used, purchased, shipped, or delivered to verify the truth and accuracy of any statement, report, or return.