12Powers of entry: supplementary
(1)An authorised officer of a local authority entering premises under or by virtue of section 9, 10 or 11 may take such other persons and such equipment as the officer considers appropriate.
(2)The powers of entry exercisable under or by virtue of section 9, 10 or 11 apply in relation to a vehicle as if it were premises.
(3)If the occupier of premises is present at the time the authorised officer seeks to execute a warrant under section 10 or 11 and enter the premises, the officer must—
(a)inform the occupier of the officer’s name;
(b)produce documentary evidence to the occupier of the officer’s authorisation;
(c)supply a copy of the warrant to the occupier.
(4)If premises that an authorised officer is authorised to enter by a warrant under section 10 or 11 are unoccupied, or if the occupier is temporarily absent, then on leaving the premises the officer must leave them as effectively secured against unauthorised entry as when the officer found them.