N.C. Gen. Stat. § 106-251
It shall be the duty of the Department of Agriculture and Consumer Services to enforce this Article, and the Board of Agriculture shall cause to be made by the experts of the Department such examinations of plants and products named herein as are necessary to insure the compliance with the provisions of this Article. For the purpose of inspection, the authorized experts of the Department shall have authority, during business hours, to enter all plants or storage rooms where cream, ice cream, butter, or cheese or ingredients used in the same are made, stored, or kept, and any person who shall hinder, prevent, or attempt to prevent any duly authorized expert of the Department in the performance of his duty in connection with this Article shall be guilty of a violation of this Article.
N.C. Gen. Stat. § 106-251