(1) The Commissioner of Agriculture and Commerce is hereby authorized to investigate and certify to shippers and other financially interested parties, the grade, quality or condition of farm products in accordance with the standard established by him. The certificates issued by the commissioner pursuant to this chapter shall be received in all counties of this state as prima facie evidence of the truth of statements contained therein. For this service the commissioner may charge reasonable fees designed to cover the cost of these services.
(2) All fees collected under the provisions of this section shall be deposited in the general fund of the state treasury.