Authorized representatives of the Commission for Public Health, any local health department or the Department of Health and Human Services, upon presenting appropriate credentials to the owner, operator, or agent in charge of a place described in G.S. 19-1.2, are authorized to enter without delay and at any reasonable time any such place in order to inspect and investigate during the regular hours of operation of such place. (1977, c. 819, s. 9; 1997-443, s. 11A.118(a); 2007-182, s. 2.)