Question

How can customary law be related to treaty provisions?

Options

• Treaties may only codify customary law

• Customary law is a different source of international and it cannot be embodied in treaties

• Treaties may codify customary law, 'crystallise' customary law and lead to the emergence of customary law

• Customary law can emerge only from few multilateral treaties

Answer 1

Treaties may codify customary law, 'crystallise' customary law and lead to the emergence of customary law