13.—(1) A judge may, on an application made to the judge by an appropriate officer, issue a search and seizure warrant if the judge is satisfied—
(a)that article 3(2) is satisfied, and
(b)either of the requirements in paragraph (4) is fulfilled.
(2) The application must also state—
(a)the warrant is sought for the purposes of the external investigation,
(b)the warrant is sought in relation to the premises specified in the application,
(c)the warrant is sought in relation to material specified in the application, or that there are reasonable grounds for believing that there is material falling within article 14(5) on the premises.
(3) A search and seizure warrant is a warrant authorising an appropriate officer—
(a)to enter and search the premises specified in the application for the warrant, and
(b)to seize and retain any material found there which is likely to be of substantial value (whether or not by itself) to the external investigation.
(4) The requirements for the issue of a search and seizure warrant are—
(a)that a production order made in relation to material has not been complied with and there are reasonable grounds for believing that the material is on the premises specified in the application for the warrant, or
(b)that article 14 is satisfied in relation to the warrant.