Prospective
(1)An authorised officer may enter premises in Wales at any reasonable time if the officer—
(a)has reasonable grounds for believing that an offence under section 38(1), (2) or (4) has been committed in the area of the local authority, and
(b)considers it necessary to enter the premises for the purpose of ascertaining whether such an offence has been committed.
(2)But this does not apply in relation to premises used wholly or mainly as a dwelling.
(3)An authorised officer may not enter premises by force under this section.
(4)An authorised officer must, if asked to do so, before entering premises under this section show evidence of the authorisation referred to in section 39.