What is PEREMPTORY NORM? What does PEREMPTORY NORM mean? PEREMPTORY NORM meaning - PEREMPTORY NORM definition - PEREMPTORY NORM explanation.
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A peremptory norm (also called yus cogens or ius cogens, Latin for "compelling law") is a fundamental principle of international law that is accepted by the international community of states as a norm from which no derogation is permitted.
There is no universal agreement regarding precisely which norms are yus cogens nor how a norm reaches that status, but it is generally accepted that yus cogens includes the prohibition of genocide, maritime piracy, slaving in general (to include slavery as well as the slave trade), torture, refoulement and wars of aggression and territorial aggrandizement. Recent scholarship has also proposed the idea of regional yus cogens.
Unlike ordinary customary law, which has traditionally required consent and allows t...