PART IV—ARREST AND SURRENDER OF PERSONS TO ICC
Restrictions on Surrender
58.
(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 theExtradition (Commonwealth Countries) Act or the Extradition (Contiguous and Foreign Countries) Act, as the case may be, in relation to a
request for extradition may continue to be taken; and
(b) no person may be surrendered under the relevant Act unless and until the ICC makes its decision on admissibility and determines that the case is inadmissible.
Competing request - same conduct - State party - pending admissibility decision
EDIT.