Contentious Cases
How states bring disputes to the ICJ, the procedural stages, and the binding nature of judgments.
Filing a Case
A contentious case begins when a state files an application with the ICJ Registry, identifying the opposing party, the subject of the dispute, and the legal basis for jurisdiction. If both states have agreed to jurisdiction by special agreement, the case proceeds automatically. If the applicant relies on a compromissory clause or Optional Clause declaration, the respondent state may challenge jurisdiction through preliminary objections.
Preliminary objections are a critical stage. The respondent can argue that the Court lacks jurisdiction, that the application is inadmissible, or both. The Court must rule on these objections before proceeding to the merits. Many important cases have been dismissed at this stage, and the Court's jurisdictional rulings are themselves significant contributions to international law.