(1)Schedule 7 (port and border controls) shall have effect.
(2)The Secretary of State may by order repeal paragraph 16 of Schedule 7.
(3)The powers conferred by Schedule 7 shall be exercisable notwithstanding the rights conferred by section 1 of the [1971 c. 77.] Immigration Act 1971 (general principles regulating entry into and staying in the United Kingdom).