CHAPTER FIVE
INTERNATIONAL LEGAL ASSISTANCE
Division Three
Requests by foreign authorities
Section 537
Manner and form of execution of request
(2) At a request by the foreign authority the assistance may be provided on the basis of the legal provisions of another State, unless the requested procedure is contrary to the interests protected by Article 481.
Refusal of ICC request
Conflict with existing fundamental legal principle of general application - consultations with the Court
Refusal of ICC request - protection of national security
EDIT.