CHAPTER 1. GENERAL PROVISIONS
Section 7
1. If Our Minister considers that there are obstacles or impediments to granting a request of the ICC for cooperation or enforcement, he shall immediately consult with the ICC in order to remove these obstacles or impediments.
2. The following may in any event constitute obstacles or impediments as referred to in subsection 1:
(d) granting the request in its present form would result in a breach of a treaty obligation that existed prior to the request and is owed to another State;
Obligations towards the sending State
EDIT.