PART III—GENERAL PROVISIONS RELATING TO REQUESTS FOR ASSISTANCE
26.
(2) If the Attorney-General or the Minister decides, in accordance with the Rome Statute and this Act, to refuse or postpone the assistance requested, in whole or in part, the notice to the ICC shall set out the reasons for the decision.
(3) If the request for assistance cannot be executed for any other reason, the notice to the ICC shall set out the reasons for the inability or failure to execute the request.
Obligation to inform the Court of reasons for denial of assistance
EDIT.