(a) No person, firm, or corporation shall administer a psychophysiological detection of deception examination, lie detector, or other similar examination utilizing mechanical or electronic measures of physiological reactions to evaluate truthfulness without holding a current valid license to do so as issued by the Commissioner of Labor. No examination shall be administered by a licensed corporation except by an officer or employee thereof who is also licensed.
(b) A person is qualified to receive a license as an examiner if he or she:
(1) Is at least 21 years of age;