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Chapter Summary

This introductory chapter provides an overview of this book Developments in Customary International Law: Theory and the Practice of the International Court of Justice (ICJ) and the International ad hoc Criminal Tribunals for Rwanda and Yugoslavia and its chapters. The book investigates the development of one of the main sources of international criminal law, viz. customary international law. Custom is one of the major sources, if not, the most important one of general international law. According to Article 38 (1) (b) of the ICJ Statute, it derives from a 'general practice, accepted as law'. By reviewing the jurisprudence of the International Court of Justice and the International ad hoc Criminal Tribunals for the Former Yugoslavia (ICTY) and Rwanda (ICTR) the book delineates the different methods employed to determine the formation of a particular norm of customary international law.

Keywords: customary international law; ICTR; ICTY; international court of justice (ICJ); international criminal law



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