PART 4 - ARREST AND SURRENDER OF PERSON TO ICC
Restrictions on surrender
62.
Procedure where competing request from State Party—
(2)If the request is one to which subsection (1)(b) relates, then, pending the ICC's determination,—
(a)the steps required to be taken under the Extradition Act 1999 in relation to a request for extradition may continue to be taken; but
(b)No person may be surrendered under that Act unless and until the ICC makes its decision on admissibility and determines that the case is inadmissible.
Postponement of execution of ICC request
Postponement - admissibility challenge
EDIT.