Nuclear Tests Cases (Australia v. France; New Zealand v. France)

Facts

• Australia and New Zealand challenged France's programme of atmospheric nuclear testing in the South Pacific
• France had conducted a series of tests creating radioactive fallout over the Pacific
• Both applicants sought a declaration that France was obliged to cease atmospheric testing
• Before the merits were heard, France's President and senior ministers made public statements that France intended to cease atmospheric testing after the current series

Issue

1. Whether the ICJ retained jurisdiction, and whether France's unilateral declarations extinguished the legal dispute by creating a binding commitment.

Held

• France's public unilateral declarations by the President and senior ministers constituted a legally binding commitment
• The declarations were made publicly and with apparent intent to be bound, creating an obligation in international law
• Since the claim was to cease testing, and France had committed to doing so, the subject matter of the dispute no longer existed
• The cases were removed from the list (moot)
• No treaty or agreement is needed for a state to bind itself; a public declaration suffices if made with intent to create legal obligations

Ratio Decidendi

A state can bind itself by a unilateral declaration made publicly with the intention of being bound. No formal treaty or agreement is required. The ICJ has the procedural power to remove cases from its list where the dispute has been extinguished before a merits judgment.