136.Section 17, subject to certain exceptions, prohibits evidence, questioning or assertion in (or for the purposes of, or in connection with) legal proceedings likely to reveal the existence or absence of a warrant. A similar provision is contained in section 9 of the Interception of Communications Act 1985, which this Act repeals.
137.Subsection (1) imposes the basic prohibition. It does this directly, by stating that the contents of intercepted material and associated communications data may not be disclosed, and indirectly by prohibiting the disclosure of any suggestion that actions under subsection (2) have occurred.
138.Subsection (2) describes the actions which may not be disclosed, including actions by persons named in subsection (3) which would constitute offences under this Act or section 1 of the 1985 Act.
139.Subsection (3) lists the people referred to in subsection (2)(a). They are people who may be in possession of information about authorised interception. In paragraph (3)(b) persons holding office under the Crown includes constables and, by virtue of Section 81(6), Crown servants and members of the Armed Forces.