http://www.legislation.gov.uk/ukpga/2000/23/section/11/2011-01-21Regulation of Investigatory Powers Act 2000An Act to make provision for and about the interception of communications, the acquisition and disclosure of data relating to communications, the carrying out of surveillance, the use of covert human intelligence sources and the acquisition of the means by which electronic data protected by encryption or passwords may be decrypted or accessed; to provide for Commissioners and a tribunal with functions and jurisdiction in relation to those matters, to entries on and interferences with property or with wireless telegraphy and to the carrying out of their functions by the Security Service, the Secret Intelligence Service and the Government Communications Headquarters; and for connected purposes.2000-07-28texttext/xmlenStatute Law Database2026-04-102011-01-21 Regulation of Investigatory Powers Act 2000s. 30(6A)-(6D)Tax Collection and Management (Wales) Act 2016Deddf Casglu a Rheoli Trethi (Cymru) 2016s. 187(2)(b)s. 194(2)Regulation of Investigatory Powers Act 2000Sch. 1 para. 16A and cross-headingTax Collection and Management (Wales) Act 2016Deddf Casglu a Rheoli Trethi (Cymru) 2016s. 187(3)s. 194(2)Regulation of Investigatory Powers Act 2000Sch. 1 Pt. 1 para. 20HEnergy Act 2013Sch. 12 para. 74s. 156(1)Regulation of Investigatory Powers Act 2000Sch. 1 para. 27CA and cross-headingThe Data (Use and Access) Act 2025 (Consequential Amendments and Transitional Provision) Regulations 2026Sch. 2 para. 11(c)(ii)reg. 1(2) Part IChapter I111Effect may be given to an interception warrant either—aby the person to whom it is addressed; orbby that person acting through, or together with, such other persons as he may require (whether under subsection (2) or otherwise) to provide him with assistance with giving effect to the warrant.2For the purpose of requiring any person to provide assistance in relation to an interception warrant the person to whom it is addressed may—aserve a copy of the warrant on such persons as he considers may be able to provide such assistance; orbmake arrangements under which a copy of it is to be or may be so served.3The copy of an interception warrant that is served on any person under subsection (2) may, to the extent authorised—aby the person to whom the warrant is addressed, orbby the arrangements made by him for the purposes of that subsection,omit any one or more of the schedules to the warrant.4Where a copy of an interception warrant has been served by or on behalf of the person to whom it is addressed on—aa person who provides a postal service,ba person who provides a public telecommunications service, orca person not falling within paragraph (b) who has control of the whole or any part of a telecommunication system located wholly or partly in the United Kingdom,it shall (subject to subsection (5)) be the duty of that person to take all such steps for giving effect to the warrant as are notified to him by or on behalf of the person to whom the warrant is addressed.5A person who is under a duty by virtue of subsection (4) to take steps for giving effect to a warrant shall not be required to take any steps which it is not reasonably practicable for him to take.6For the purposes of subsection (5) the steps which it is reasonably practicable for a person to take in a case in which obligations have been imposed on him by or under section 12 shall include every step which it would have been reasonably practicable for him to take had he complied with all the obligations so imposed on him.7A person who knowingly fails to comply with his duty under subsection (4) shall be guilty of an offence and liable—aon conviction on indictment, to imprisonment for a term not exceeding two years or to a fine, or to both;bon summary conviction, to imprisonment for a term not exceeding six months or to a fine not exceeding the statutory maximum, or to both.8A person’s duty under subsection (4) to take steps for giving effect to a warrant shall be enforceable by civil proceedings by the Secretary of State for an injunction, or for specific performance of a statutory duty under section 45 of the Court of Session Act 1988, or for any other appropriate relief.9For the purposes of this Act the provision of assistance with giving effect to an interception warrant includes any disclosure to the person to whom the warrant is addressed, or to persons acting on his behalf, of intercepted material obtained by any interception authorised or required by the warrant, and of any related communications data.1988 c. 36.