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Customary International Law: Introduction

Definitions of Customary International Law

Custom as a Source of Law

Interpreting Customary International Law

" is vitally important to say that unwritten law. This includes Customary International Law, whatever mistaken publicists may teach, even publicists of the most highly qualified kind, and whatever hypocritical and self-serving governments and their sycophantic intellectual camp-followers may say. There is little enough public order in the intergovernmental world without despising the modicum of intelligent self-ordering that, over long centuries, it has been able to find within itself." (Philip Allott, Interpretation in International Law, 386)