# Immigration Act 1971, Paragraph 4


Notwithstanding anything in section 1(3) of this Act, it shall not be lawful for a person who is not a British citizen or an Irish citizen to enter the United Kingdom from any of the Islands where his presence was unlawful under the immigration laws of that island, unless he is given leave to enter.

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Source: https://www.legislation.gov.uk/ukpga/1971/77/schedule/4/paragraph/4 (the official version)
Page: https://openlegislation.uk/immigration-act-1971/schedule-4/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.