HC Deb 15 December 1983 vol 50 c522W
Mr. Norman Atkinson

asked the Secretary of State for the Home Department what is the authority for immigration officials searching the baggage of travellers to the United Kingdom without the passengers' knowledge or permission or photocopying private correspondence of passengers without the passengers' permission.

Mr. Waddington

The powers are contained in paragraph 2 and subparagraphs 4(2), 4(3) and 4(4) of schedule 2 to the Immigration Act 1971. Where documents relevant for the purposes of the examination are likely to be needed in connection with proceedings on an appeal, they are usually photocopied in order that the originals may be returned to the passenger.