5.—(1) Upon receiving an application under rule 4, the Director may inspect the premises which the applicant intends to use for the cultivation of plants and if the Director is satisfied that the premises are suitable for such use, he may, subject to such conditions as he may think fit to impose, issue a licence to the applicant.
(2) Every licence shall be in such form as the Director may determine.
(3) Notwithstanding paragraph (1), the Director may refuse to issue a licence without assigning any reason.
(4) The Director may at any time add to, vary or revoke, any of the conditions subject to which a licence has been issued.