The chief of medical services, or his or her designee, shall use every available means to ascertain the existence of, and to immediately investigate all reported or suspected cases of, tuberculosis in the infectious stages and to ascertain the source or sources of the infections. In carrying out these investigations, the chief of medical services, or his or her designee, is hereby invested with full powers of inspection, examination, and quarantine or isolation of all inmates or wards known to be, or reasonably suspected to be, infected with tuberculosis in an infectious stage.