(1)  For the purpose of ascertaining whether there is or has been a contravention of or a failure to comply with this Act, an inspector may, at any reasonable time, without a warrant, enter premises –

(a) occupied by a person who is, or in the previous 6 months was, the holder of a licence under this Act authorising him to manufacture or distribute a scheduled substance;

(b) where –

(i) goods are sold on those premises; and

(ii) the inspector believes, on reasonable grounds, that those premises are used for or in connection with the sale or supply of a scheduled substance;

(c) occupied by a person who is, or in the previous 6 months was, the holder of a licence under this Act authorising him to have in his possession a scheduled substance or who is otherwise authorised by this Act to have such a substance in his possession;

(d) occupied by a person who is the holder of a licence under this Act authorising him to grow a prohibited plant; or

(e) in which the making, refining, preparation, possession, or use of a prohibited substance is authorised by this Act.

(2)  An inspector who has entered premises under the power conferred on him by subsection (1) may do all or any of the following things:

(a) examine any room in, or any part of, the premises and any articles within any such room or part;

(b) inspect, check, and make an inventory of any substances or plants kept in any such room or part which he believes on reasonable grounds to be scheduled substances or prohibited plants;

(c) require the production of, and inspect and make copies of, any documents relating to dealings with any scheduled substances or prohibited plants kept or that he finds on the premises;

(d) require the production of any scheduled substances or prohibited plants kept on the premises;

(e) inspect, check, and make an inventory of any substances or plants kept on the premises which he believes on reasonable grounds to be scheduled substances or prohibited plants;

(f) on payment or tender of a reasonable price, demand, select, and obtain any sample of any scheduled substance which is on the premises;

(g) seize any substance, plant, or document kept or that he finds on the premises, being a substance, plant, or document in relation to which he believes on reasonable grounds there has been a contravention of, or failure to comply with, this Act;

(h) detain or remove to some other place any substance, plant, or document so seized.

(3)  An inspector may exercise the powers conferred on him by subsections (1) and (2) with or without assistance.