Ratification, Implementation and Co-operation


Although more than 120 States have ratified the ICC Statute of the International Criminal Court, around 70 countries are yet to join the Court, excluding roughly 65% of the world’s population from its reach. To date, more than 60 States Parties do not have co-operation legislation, which can restrict their capacity to co-operate with the ICC. This has a direct impact on the ability of the ICC to enforce its decisions: as the Court does not have a police force of its own it entirely depends on State co-operation. Equally, a similar number of States are yet to criminalise core international crimes in their national legislation, which can limit their ability to investigate and prosecute the conduct proscribed by the ICC Statute.

The Ratification, Implementation and Co-operation Toolkit aims to provide national legislators, State institutions, independent institutions, NGOs and academics with tools, resources and services to support efforts to ratify and implement the ICC Statute and to co-operate with the Court.

Databases: CJAD (Cooperation and Judicial Assistance Database)

CJAD provides information and analysis on all aspects of implementing legislation on co-operation relevant to the ICC Statute, including the Agreement on Privileges and Immunities of the International Criminal Court.



  • Access to, overview and comparison of legal information regarding co-operation legislation;
  • Global oversight of the broader regulatory regime of the ICC Statute system;
  • Detailed, targeted and accurate searches;
  • Analysis of specific co-operation approaches.



Developed by the University of Nottingham Human Rights Law Centre, CJAD will operate as an add-on to the National Implementing Legislation Database (NILD), a tool within the ICC Legal Tools Database.


  • User manual on the use of CJAD, available in English and French
  • Implementation checklist, available in English and French
  • Comparative co-operation charts, available in English and French
  • Annotated legislation in selected countries
  • Advisory papers on ratification, implementation and co-operation in the context of the ICC
  • Thematic guidelines


  • Technical assistance
  • Capacity Development Partnership


Further reading:

O. Bekou, “Building Databases for the ICC Legal Tools Project: Data Structures and the National Implementing Legislation Database” in M. Bergsmo (ed.), “Active Complementarity: Legal Information Transfer“, Torkel Opsahl Academic EPublisher, Oslo, 2011, pp. 153-180;

M. Bergsmo, M. Harlem and N. Hayashi (eds.) “Importing Core International Crimes into National Criminal Law“, Second Edition, Torkel Opsahl Academic EPublisher, Oslo, 2010, 74 pp. (ISBN 978-82-93081-00-5);

V. Oosterveld, M. Perry and J. McManus, “The Cooperation of States with the International Criminal Court” (2001) 25 Fordham International Law Journal 767-839;

Coalition for the International Criminal Court, Questions & Answers: ICC Implementing Legislation