The Commissioner of Agriculture or his designated agent shall have power to examine, copy and audit, from time to time, as he deems necessary and proper, the books, papers, records and accounts of dealers and others for the purpose of effectuating the policy and provisions of this part or any order, ruling, regulation or direction promulgated hereunder. The commissioner or his designated agent shall have access to and may enter and inspect at all reasonable hours all places, equipment and vehicles where milk and milk products are being received, purchased, stored, bottled, manufactured, sold or handled and where books, papers, records or accounts relating thereto are kept. The commissioner may make known the findings of such examination, inspection or audit to the producers directly interested therein when, in his judgment, such action will best effectuate the policy and provisions of this part or any order, ruling or regulation promulgated hereunder.