CHAPTER II: COOPERATION WITH THE COURT
SECTION I: PRINCIPLES OF COOPERATION
Art. 4 Consultations
The Central Authority shall conduct consultations as indicated in article 97 of the Statute, in particular when the execution of a request:
b. would prejudice national security interests (art. 72 and art. 93 para. 4 of the Statute)
Protection of national security
Refusal of ICC request - protection of national security
EDIT.