(1)The enactments specified in Schedule 4 (amendments consequential on the provisions of this Act) shall have effect with the amendments set out in that Schedule.
(2)The enactments mentioned in Schedule 5 are hereby repealed to the extent specified in the third column of that Schedule.
(3)For the avoidance of doubt it is hereby declared that nothing in this Act (except paragraphs 1 and 2 of Schedule 4) affects any power conferred on the Post Office by or under any enactment to open, detain or delay any postal packet or to deliver any such packet to a person other than the person to whom it is addressed.
(4)Where any warrant under the [1985 c. 56.] Interception of Communications Act 1985 is in force under that Act at the time when the repeal by this Act of section 2 of that Act comes into force, the conduct authorised by that warrant shall be deemed for the period which—
(a)begins with that time, and
(b)ends with the time when that warrant would (without being renewed) have ceased to have effect under that Act,
as if it were conduct authorised by an interception warrant issued in accordance with the requirements of Chapter I of Part I of this Act.
(5)In relation to any such warrant, any certificate issued for the purposes of section 3(2) of the [1985 c. 56.] Interception of Communications Act 1985 shall have effect in relation to that period as if it were a certificate issued for the purposes of section 8(4) of this Act.
(6)Sections 15 and 16 of this Act shall have effect as if references to interception warrants and to section 8(4) certificates included references, respectively, to warrants under section 2 of the [1985 c. 56.] Interception of Communications Act 1985 and to certificates under section 3(2) of that Act; and references in sections 15 and 16 of this Act to intercepted or certified material shall be construed accordingly.