(1) Where an interception direction or an entry warrant or both, has been issued or renewed, it shall be the duty of every person mentioned under section 18(3) to keep such information confidential—
(a) the existence and the contents of the interception direction and the entry warrant;
(b) the details of the issue of the interception direction and the entry warrant and of any renewal or modification of either;
(c) the existence and the contents of any requirement to provide assistance with the giving effect to the interception direction or the entry warrant;
(d) the steps taken under the interception direction or the entry warrant or of any such requirement; and
(e) everything in the intercepted material together with any related communications data.
(2) A person who makes a disclosure to any person of anything that he or she is required to keep confidential under subsection (1) commits an offence and is liable on summary conviction to a fine not exceeding $5,000 or to imprisonment for a term not exceeding one year or to both.
(3) In relation to proceedings against any person for an offence under this section in respect of any disclosure, subsections 4(8) to 4(11) shall apply with any necessary modification as they apply in relation to proceedings under section 4.
(4) In proceedings against any person for an offence under this section in respect of any disclosure, it shall be a defence for that person to show that the disclosure was confined to a disclosure authorised—
(a) by the interception direction or the entry warrant or by the person to whom the interception direction or the entry warrant is or was addressed; or
(b) by section 16.