(1) An inspector must, before obtaining the consent of an occupier of premises for the purposes of paragraph 256 (3)(a), inform the occupier that the occupier may refuse consent.
(2) A consent has no effect unless the consent is voluntary.
(3) A consent may be expressed to be limited to entry during a particular period. If so, the consent has effect for that period unless the consent is withdrawn before the end of that period.
(4) A consent that is not limited as mentioned in subsection ( 3) has effect until the consent is withdrawn.
(5) If an inspector entered premises because of the consent of
the occupier of the premises, the inspector , and any person assisting the
inspector , must leave the premises if the consent ceases to have effect.