Circumstances under which an instructor’s licence ceases to be valid
18.—(1)  An instructor’s licence shall cease to be valid when —
(a)the licensee is disqualified under the Act from holding or obtaining a driving licence for vehicles of any class; or
(b)the driving licence held by the licensee has expired or is suspended or revoked under the Act.
(2)  Where an instructor’s licence ceases to be valid under paragraph (1), the licensee shall forthwith return the licence to the Deputy Commissioner of Police.