III LEGAL ASSISTANCE TO THE INTERNATIONAL CRIMINAL COURT
General Rules of Co-operation and Providing Legal Assistance
Article 14
In providing the International Criminal Court with legal assistance, the competent state authority shall also undertake actions which have not been specifically sought by the International Criminal Court to be implemented if the actions to be taken are directly linked with the objective of providing legal assistance or where it is necessary for the purposes of identifying the perpetrator of the criminal offence and the collecting of evidence required for the proceedings before the International Criminal Court, and should the collecting of evidence be prevented or significantly impeded.
Cooperation under procedures of national law
Availability of additional procedures
Other types of assistance - national procedures for ICC proceedings
EDIT.