(1) Sections 21 to 23 shall, subject to the following provisions of this section, expire at the end of the period of 15 months beginning with the day on which this Act is passed.
(2) The Secretary of State may by order-
(a) repeal sections 21 to 23;
(b) revive those sections for a period not exceeding one year;
(c) provide that those sections shall not expire in accordance with subsection (1) or an order under paragraph (b) or this paragraph, but shall continue in force for a period not exceeding one year.
(3) An order under subsection (2) -
(a) must be made by statutory instrument, and
(b) may not be made unless a draft has been laid before and approved by resolution of each House of Parliament.
(4) An order may be made without compliance with subsection (3)(b) if it contains a declaration by the Secretary of State that by reason of urgency it is necessary to make the order without laying a draft before Parliament; in which case the order-
(a) must be laid before Parliament, and