Prevention of Terrorism (Temporary Provisions) Act 1974

8 Control of entry and procedure for removal

(1) The Secretary of State may by order provide for—

(a) the examination of persons arriving in, or leaving, Great Britain or Northern Ireland, with a view to determining—

(i) whether any such person appears to be a person concerned in the commission, preparation or instigation of acts of terrorism, or

(ii) whether any such person is subject to an exclusion order, or

(iii) whether there are grounds for suspecting that any such person has committed an offence under section 3(8) of this Act,

(b) the arrest and detention of persons subject to exclusion orders, pending their removal pursuant to section 5 above, and

(c) arrangements for the removal of persons pursuant to section 5 above.

(2) An order under this section may confer powers on examining officers (appointed in accordance with paragraph 1 (2) of Schedule 3 to this Act), including—

(a) the power of arresting and detaining any person pending—

(i) his examination,

(ii) the taking of a decision by the Secretary of State as to whether or not to make an exclusion order against him, or

(iii) his removal pursuant to section 5 above,

(b) the power of searching persons, of boarding ships or aircraft, of searching in ships or aircraft, or elsewhere and of detaining articles—

(i) for use in connection with the taking of a decision by the Secretary of State as to whether or not to make an exclusion order ; or

(ii) for use as evidence in criminal proceedings.