(a) The examiners of applicants for operators' licenses shall be appointed by and shall be under the supervision of the Secretary.
(b) The Department may designate local officers of the law or may appoint persons within this State to act for the Department for the purpose of examining applicants for operators' licenses. Such persons so designated or appointed shall conduct the examinations of the applicants for operators' licenses in the manner prescribed by the Department under this title and shall make a written report of the findings and recommendations upon such examinations to the Department.