The Police and Criminal Evidence (Northern Ireland) Order 1989

11.  The further conditions mentioned in paragraph 9(a)(ii) are—N.I.

(a)that it is not practicable to communicate with any person entitled to grant entry to the premises F1. . . ;

(b)that it is practicable to communicate with a person entitled to grant entry to the premises but it is not practicable to communicate with any person entitled to grant access to the material;

(c)that the material contains information which—

(i)is subject to a restriction or obligation such as is mentioned in Article 13(2)(b); and

(ii)is likely to be disclosed in breach of it if a warrant is not issued;

(d)that service of notice of an application for an order under paragraph 4 may seriously prejudice the investigation for the purpose of which the application is sought, or other investigations.