| 21. | Further, those provisions are considered customary international law.
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| 22. | It addressed'. . . whether Trident or a likely replacement to Trident breaches customary international law'
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| 23. | The Convention codifies the declarative theory of statehood as accepted as part of customary international law.
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| 24. | There is some debate on what the status of crimes against humanity under customary international law is.
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| 25. | Questions not expressly regulated by the Convention continue to be governed by the rules of customary international law.
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| 26. | At the same time, all countries take part in forming customary international law by their practices and decisions.
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| 27. | Other examples accepted or claimed as customary international law include the principle of non-refoulement and heads of state.
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| 28. | Transnational crimes may also be crimes of customary international law or international crimes when committed in certain circumstances.
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| 29. | Nevertheless, diplomatic protection has been recognized as customary international law by international courts and tribunals as well as scholars.
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| 30. | An evolution of the positivist approach of Grotius, the concept of consent is an element of customary international law.
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