S
Sahaj Vidhi
Law Optional 2023 Paper I solved

Explain the principle of 'Jus cogens' with reference to 'Vienna Convention on Law of Treaties, 1969'.

Verified Answer

  1. Core Legal Answer & Context: 'Jus cogens' (peremptory norms of general international law) refers to fundamental principles of international law from which no derogation is permitted. These norms are considered so fundamental to the international community that they override any conflicting treaty or customary law. They can only be modified by a subsequent norm of general international law having the same character. Examples include the prohibition of genocide, slavery, torture, aggression, and racial discrimination. The Vienna Convention on the Law of Treaties (VCLT), 1969, formally codifies and establishes the legal consequences of jus cogens.

  2. Relevant Statutes and Sections:

  • Vienna Convention on the Law of Treaties (VCLT), 1969:
    • Article 53: States that a treaty is void if, at the time of its conclusion, it conflicts with a peremptory norm of general international law (jus cogens).
    • Article 64: Stipulates that if a new peremptory norm of general international law emerges, any existing treaty which is in conflict with that norm becomes void and terminates.
  1. Important Landmark Cases:
  • Barcelona Traction Case (ICJ, 1970): While not directly on jus cogens, the ICJ introduced the concept of 'erga omnes' obligations (obligations owed to the international community as a whole), which are closely linked to jus cogens norms, implying their fundamental nature.
  • East Timor Case (ICJ, 1995): The ICJ affirmed the right to self-determination as an 'erga omnes' obligation, reinforcing its character as a jus cogens norm.
  1. Clear Conclusion: Jus cogens norms represent the highest-ranking principles in international law, reflecting the fundamental values and public order of the international community. The VCLT's explicit recognition in Articles 53 and 64 provides a crucial legal framework, ensuring that no treaty can lawfully contradict these peremptory norms, thereby upholding the foundational ethical and legal integrity of the international system.