Identify, which is not the source of international Law.

Decisions of courts of nations in dispute

The correct answer is Option (3) → Decisions of courts of nations in dispute

Decisions of courts of nations in dispute are not a primary source of international law. While they can be influential and provide guidance, they are not considered to be binding on all states.

"Article 38(1) of the Statute of the International Court of Justice provides that when a court which deals with disputes relating to international law, it shall apply:

"International conventions, whether general or particular, establishing rules expressly recognized by the contesting states,

a) International custom, as evidence of general practice accepted by law

b) The general principles of law recognized by civilized nations

c) Subject to provisions of Article 59, judicial decisions and teachings of the most highly qualified publicists of the various nations, as subsidiary means for the determination of rules of international law”