Part 2: Lawful interception of communications Chapter 1: Interception and examination with a warrant Section 26: Members of Parliament etc.
This section requires the Secretary of State to obtain the approval of the Prime Minister (as well as a Judicial Commissioner) before issuing a targeted interception or examination warrant where the purpose is to obtain the communications of a person who is a Member of Parliament, a Member of the European Parliament representing the United Kingdom, or a member of one of the devolved legislatures.