Upon the examination of specimens or samples of any article, substance, material or product the sale of which is subject to the provisions of this article, made by any chemist, analyst, inspector or assistant under the direction and supervision of the Commissioner of Agriculture and Industries, if such examination shows that such article, substance, material or product does not conform to the requirements prescribed by any provisions of law or rules and regulations under authority of law, the commissioner shall cause notice thereof to be given to the party from whom such specimen or sample was obtained. Any party so notified shall be given an opportunity to be heard before the Commissioner of Agriculture and Industries under such rules and regulations as may be prescribed by the State Board of Agriculture and Industries. If it appears that any of the requirements of any provision of law or rules and regulations under authority of law relating to the sale of any article, substance, material or product, the sale of which is subject to the provisions of this article, have been violated, the Commissioner of Agriculture and Industries or any assistant as provided in this section shall at once certify the fact under oath to the proper district attorney, with a copy of the result of the analysis, examination or inspection, duly authenticated by the person making such analysis, examination or inspection.