12.—(1) A licensee shall, upon the receipt of a notice, referred to in section 31(3) of the Act, of the revocation or suspension of his licence, forthwith surrender his licence to the Director.
(2) The Director shall, upon the expiry of the period of suspension of a licence which has been surrendered to him under paragraph (1), return the licence to the person to whom the licence was issued if the licence has not at that time expired.