10(1)Where the occupier of premises to be entered and searched under a search warrant is present at the time when a relevant enforcement officer seeks to execute the warrant, the following requirements must be satisfied—
(a)the occupier must be told the officer’s name;
(b)if not a constable in uniform, the officer must produce to the occupier documentary evidence that the officer is a relevant enforcement officer;
(c)the officer must produce the warrant to the occupier;
(d)the officer must supply the occupier with a copy of it.
(2)Where the occupier of premises to be entered and searched under a search warrant is not present at the time when a relevant enforcement officer seeks to execute the warrant—
(a)if some other person who appears to the officer to be in charge of the premises is present, sub-paragraph (1) has effect as if a reference to the occupier were a reference to that other person;
(b)if not, the officer must leave a copy of the warrant in a prominent place on the premises.