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dualism

English · DYOO-uh-liz-um · International law

Meaning. The theory that international law and municipal law are separate systems, so treaties need domestic legislation to bind courts.

Dualism holds that international law governs relations between states while municipal law governs individuals within a state; neither is automatically part of the other. Monism, by contrast, treats both as parts of one legal order. For a dualist state, a treaty becomes enforceable in domestic courts only when transformed by legislation.

India broadly follows dualism: the Union has power to make laws to implement treaties (Article 253), and treaties do not of themselves override statutes. Yet Indian courts read domestic law consistently with international obligations where there is no conflict (Jolly George Verghese) and, in Vishaka, used CEDAW to frame guidelines in the absence of a law. Customary international law not inconsistent with domestic law is treated as part of Indian law.

Example

Under dualism, the ICCPR could not override s.51 CPC, but in Jolly George Verghese the court read the section in harmony with it.

In Indian law

See also

erga omnes · ex aequo et bono

Read more in the study notes

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