(1) Subject to section 19, no evidence shall be adduced, question asked, assertion or disclosure made, or other thing done, for the purposes of or in connection with any legal proceedings which, in any manner—
(a) discloses, in circumstances from which its origin in anything specified in subsection (2) may be inferred, any of the contents of intercepted communications data; or
(b) tends, apart from any such disclosure, to suggest that anything specified in subsection (2) has or may have occurred or is going to occur.
(2) The circumstances referred to in subsection (1) are as follows—
(a) conduct by a person falling within subsection (3) that was or would be an offence under section 3(1);
(b) the issue of an interception direction or an entry warrant or both;
(c) the making of an application by the Attorney General or the Director of Public Prosecutions on behalf of an authorised officer, for an interception direction or an entry warrant or both;
(d) the imposition of any requirement on any person to provide assistance with giving effect to an interception direction or an entry warrant.
(3) The persons referred to in subsection (2)(a) are—
(a) any person to whom an interception direction or an entry warrant pursuant to this Act may be addressed;
(b) any person holding office under the Crown;
(c) any person employed by or for the purposes of the Police Force or the Financial Intelligence Authority;
(d) any person providing a postal service or employed for the purposes of any business of providing a postal service; and
(e) any person providing a telecommunications service or an employee for the purposes of any business of providing such a service.