(1) Before seeking the consent of the occupier of premises for the purposes of paragraph 31 (2) (a), an inspector shall inform the occupier that he or she may refuse to give that consent.
(2) If the inspector obtains the occupier's consent for those purposes, the inspector shall ask the occupier to sign a written acknowledgment—
(a) that the occupier has been informed that he or she may refuse to give consent, for the purposes of paragraph 31 (2) (a), for the inspector to enter the occupier's premises and to exercise any power under section 34;
(b) that the occupier has given the inspector that consent; and
(c) of the day on which, and the time at which, the consent was given.
(3) Where it is material, in any proceedings, for a court to be satisfied that an occupier has consented for the purposes of paragraph 31 (2) (a), and an acknowledgment, in accordance with subsection (2), signed by the occupier, is not produced in evidence, it shall be presumed that the occupier did not consent, but the presumption is rebuttable.