7(1)Where—
(a)a person’s transfer under paragraph 1, 2 or 3 above; or
(b)a transfer under paragraph 4 above of a person’s supervision,
is a restricted transfer, that person or, as the case may be, his supervision may by order be transferred back to the country or island from which he or it was transferred.
(2)Where a person’s transfer under paragraph 1 or 2 above is a restricted transfer, that person shall while in the country or territory to which he is transferred be kept in custody except in so far as the Secretary of State may in any case or class of case otherwise direct.