Part 7
Miscellaneous
56 Act not to limit other provision of assistance
Nothing in this Act shall prevent the provision of assistance to a Tribunal otherwise than under this Act.
57 Attorney-General may decline to comply with request in certain cases
The Attorney-General may decline to comply with a request to which section 21, 29, 30, 31, 35, or 41 applies where, in the Attorney-General's opinion,—
(a) to comply with the request would prejudice the sovereignty, security, or national interests of New Zealand ;
Protection of national security
Refusal of ICC request - protection of national security
EDIT.