"(1) In this Act 'special procedure material' means — (a) material to which subsection (2) below applies; and (b) journalistic material, other than excluded material. (2) Subject to the following provisions of this section, this subsection applies to material, other than items subject to legal privilege and excluded material, in the possession of a person who — (a) acquired or created it in the course of any trade, business, profession or other occupation or for the purpose of any paid or unpaid office; and (b) holds it subject— (i) to an express or implied undertaking to hold it in confidence; or (ii) to a restriction or obligation such as is mentioned in section 11(2)(b) above."
"(1) A constable may obtain access to excluded material or special procedure material for the purposes of a criminal investigation by making an application under Schedule 1 below and in accordance with that Schedule."
"1. If on an application made by a constable a circuit judge is satisfied that one or other of the sets of access conditions is fulfilled, he may make an order under paragraph 4 below. 2. The first set of access conditions is fulfilled if — (a) there are reasonable grounds for believing — (i) that an indictable offence has been committed; (ii) that there is material which consists of special procedure material or includes special procedure material and does not also include excluded material on premises specified in the application, or on premises occupied or controlled by a person specified in the application (including all such premises on which there are reasonable grounds for believing that there is such material as it is reasonably practicable so to specify); (iii) that the material is likely to be of substantial value (whether by itself or together with other material) to the investigation in connection with which the application is made; and (iv) that the material is likely to be relevant evidence; (b) other methods of obtaining the material — (i) have been tried without success ; or (ii) have not been tried because it appeared that they were bound to fail; and (c) it is in the public interest, having regard — (i) to the benefit likely to accrue to the investigation if the material is obtained; and (ii) to the circumstances under which the person in possession of the material holds it, That the material should be produced or that access to it should be given. 3. The second set of access conditions is fulfilled if — (a) there are reasonable grounds for believing that there is material which consists of or includes excluded material or special procedure material on premises specified in the application, or on premises occupied or controlled by a person specified in the application (including all such premises on which there are reasonable grounds for believing that there is such material as it is reasonably practicable so to specify); (b) but for section 9(2) above a search of such premises for that material could have been authorised by the issue of a warrant to a constable under an enactment other than this Schedule; and (c) the issue of such a warrant would have been appropriate."
"An act to enable the United Kingdom to co-operate with other countries in criminal proceedings and investigations."
"(1)Part II of the Police and Criminal Evidence Act 1984 (Powers of Entry, Search and Seizure) shall have effect as if references to serious arrestable offences in section 8 of and Schedule 1 to that Act included any conduct which is an offence under the law of a country or territory outside the United Kingdom and would constitute a serious arrestable offence if it had occurred in any part of the United Kingdom."
"(4) No application for a warrant or order shall be made by virtue of subsection (1) or (2) above except in pursuance of a direction given by the Secretary of State in response to a request received — (a) from a court or tribunal exercising criminal jurisdiction in the overseas country or territory in question or a prosecuting authority in that country or territory; or (b) from any other authority in that country or territory which appears to him to have the function of making requests for the purposes of this section; and any evidence seized by a constable by virtue of this section shall be furnished by him to the Secretary of State for transmission to that court, tribunal or authority."
"An Act to make provision for further co-operation with other countries in respect of criminal proceedings and investigations."
"1. Where a question for assistance in obtaining evidence in a part of the United Kingdom is received by the territorial authority for that part, the authority may — (a) if the conditions in section 14 are met, arrange for the evidence to be obtained under section 15, or (b) direct that a search warrant be applied for under or by virtue of section 16 or 17."
"The courts are ever mindful that their constitutional role in this field is interpretative. They must abstain from any course which might have the appearance of judicial legislation. A statute is expressed in language approved and enacted by the legislature. So the courts exercise considerable caution before adding or omitting or substituting words. Before interpreting a statute in this way the court must be abundantly sure of three matters: (1) the intended purpose of the statute or provision in question; (2) that by inadvertence the draftsman and Parliament failed to give effect to that purpose in the provision in question; and (3) the substance of the provision Parliament would have made, although not necessarily the precise words Parliament would have used, had the error in the Bill been noticed. The third of these conditions is of crucial importance. Otherwise any attempt to determine the meaning of the enactment would cross the boundary between construction and legislation: see Lord Diplock in Jones v Wrotham Park Settled Estates[1980] AC 74 105."