The director is hereby authorized to administer and enforce the provisions of this chapter. For the purpose of enforcing the same, the officers and employees of the department and the director shall have the right to enter and inspect at any time during business hours any building, structure or premises used as a slaughterhouse. (Mont. Co. Code 1965, § 101-2; 1969 L.M.C., ch. 35, § 15; 1972 L.M.C., ch. 16, §§ 5, 13; 1980 L.M.C., ch. 38, § 1.)