III LEGAL ASSISTANCE TO THE INTERNATIONAL CRIMINAL COURT
General Rules of Co-operation and Providing Legal Assistance
Article 14
The content of the letter rogatory for providing legal assistance transmitted by the International Criminal Court shall be considered classified and may be published, partially or in full, solely when it is indispensable for the purposes of the execution of the letter rogatory or for other particularly significant circumstances, with prior consent of the International Criminal Court.
Confidentiality re request for cooperation and supporting documentation
EDIT.