(1)In this Chapter—
“communications data” has the meaning given by section 21(4);
“designated” shall be construed in accordance with subsection (2);
“postal or telecommunications operator” means a person who provides a postal service or telecommunications service;
“relevant public authority” means (subject to subsection (4)) any of the following—
a police force;
the National Criminal Intelligence Service;
the National Crime Squad;
the Commissioners of Customs and Excise;
the Commissioners of Inland Revenue;
any of the intelligence services;
any such public authority not falling within paragraphs (a) to (f) as may be specified for the purposes of this subsection by an order made by the Secretary of State.
(2)Subject to subsection (3), the persons designated for the purposes of this Chapter are the individuals holding such offices, ranks or positions with relevant public authorities as are prescribed for the purposes of this subsection by an order made by the Secretary of State.
(3)The Secretary of State may by order impose restrictions—
(a)on the authorisations and notices under this Chapter that may be granted or given by any individual holding an office, rank or position with a specified public authority; and
(b)on the circumstances in which, or the purposes for which, such authorisations may be granted or notices given by any such individual.
(4)The Secretary of State may by order remove any person from the list of persons who are for the time being relevant public authorities for the purposes of this Chapter.
(5)The Secretary of State shall not make an order under this section that adds any person to the list of persons who are for the time being relevant public authorities for the purposes of this Chapter unless a draft of the order has been laid before Parliament and approved by a resolution of each House.