Sovereignty
The foundational legal principle that a state has supreme authority within its own territory — and the shield most often raised when international accountability comes knocking.
Sovereignty is the principle that each state possesses supreme and independent authority within its own territorial boundaries, free from external interference. It is the foundational organising principle of the international legal order, codified in Article 2(1) of the UN Charter, which establishes the sovereign equality of all member states.
In practice, sovereignty means that no state is legally subordinate to another. A state cannot be compelled to extradite a suspect, execute a foreign court order, or disclose financial records held within its jurisdiction without its consent — typically formalised through a treaty. The principle protects genuine independence. It also, in precisely the same operation, protects deliberate non-cooperation.
This publication will encounter sovereignty frequently — not as an abstract principle, but as a procedural argument. When a requested state declines a mutual legal assistance request, cites domestic legal constraints, or limits the scope of an international review, it is exercising sovereign authority. The argument is legally legitimate. The outcome is that accountability stops at the border.
See also: Autonomy. Mutual legal assistance.
Sources: Charter of the United Nations, Article 2(1); Declaration on Principles of International Law concerning Friendly Relations among States, UN GA Res 2625 (XXV) (24 October 1970).