31.—(1) The Director may at any time revoke or suspend a licence or permit.
(2) The Director shall, before taking any action referred to in subsection (1), notify the person concerned of his intention to take such action and shall give the person concerned an opportunity to submit reasons why such action should not be taken against him.
(3) Where the Director has revoked or suspended a licence or permit under this Act, he shall give notice in writing of the suspension or revocation to the person concerned.
(4) Where a licence issued by the Director pursuant to an order made under section 16 is revoked or has expired, the licensee shall eradicate and destroy all or any of the prohibited plants planted or cultivated or maintained in pursuance thereof and any prohibited plant not eradicated and destroyed shall be deemed to have been grown in contravention of section 16.
(5) Notwithstanding subsection (2), a permit issued pursuant to section 7(2) may be revoked without notice by the Director.