4(1)Where it appears to the Secretary of State that there are grounds for suspecting that a person has been concerned in the commission or attempted commission of any act of terrorism or in directing, organising or training persons for the purpose of terrorism, the Secretary of State may make an interim custody order for the temporary detention of that person.
(2)An interim custody order shall be signed by the Secretary of State or a Minister of State or Under Secretary of State.
5(1)The Secretary of State may, at any time before the expiration of the period of fourteen days following the date of an interim custody order, refer the case to an Adviser and, unless the case is so referred, the order shall cease to have effect at the expiration of that period.
(2)A reference to an Adviser under this paragraph shall be by notice in writing signed on behalf of the Secretary of State and a copy of the notice shall be sent to the person detained.