All books, records, and other papers and documents of all persons, selling on commission any agricultural, horticultural, or other products of the farm, lake, gulf, ocean, or stream may be inspected at any time by the commissioner of agriculture and forestry, the attorney general, any district attorney of the state, or any assistant or representative designated by either of these authorities, for the purpose of:
A written request shall be made to any of these authorities by the consignor or shipper, and such inspection may be made by the consignor, or shipper, in person, or through his authorized representative.
La. R.S. § 51:6