12. Upon the expiration of the term of office of the present commissioner, the Governor, by and with the advice and consent of the Senate, shall appoint a commissioner, who shall be known as the New York State Dairy Commissioner, who shall be a citizen of this State, and who shall hold his office for the term of two years, or until his successor is appointed, and shall receive a salary of three thousand dollars per annum, and his necessary expenses incurred in the discharge of his official duties under this Act. Said commissioner shall be charged, under the direction of the Governor, with the enforcement of the various provisions thereof, and with all laws prohibiting or regulating the adulteration of butter, cheese, or milk. The said commissioner is hereby authorised and empowered to appoint such assistant commissioners and to employ such experts, chemists, agents, and such counsel as may be deemed by him necessary for the proper enforcement of this law, their compensation to be fixed by the commissioner. The said commissioner is also authorised to employ a clerk at an annual salary not to exceed twelve hundred dollars. The sum of fifty thousand dollars is hereby appropriated, to be paid for such purpose out of any moneys in the Treasury not otherwise appropriated. All charges, accounts and expenses authorised by this Act shall be paid by the Treasurer of the State upon the warrant of the comptroller, after such expenses have been audited and allowed by the comptroller. The entire expenses of said commissioner shall not exceed the sum appropriated for the purposes of this Act. The said commissioner shall make annual reports to the legislature, on or before the fifteenth day of January of each year, of his work and proceedings, and shall report in detail the number of assistant commissioners, experts, chemists, agents, and counsel he has employed, with their expenses and disbursements. The said commissioner shall have a room in the new capitol, to be set apart for his use by the capitol commissioner. The said commissioner and assistant commissioners and such experts, chemists, agents, and counsel as they shall duly authorise for the purpose, shall have full access, egress, and ingress to all places of business, factories, farms, buildings, carriages, vessels, and cans used in the manufacture and sale of any dairy products or any imitation thereof. They shall also have power and authority to open any package, can, or vessel containing such articles which may be manufactured, sold, or exposed for sale, in violation of the provisions of this Act, and may inspect the contents therein and may take therefrom samples for analysis. This section shall not affect the tenure of the office of the present commissioner.