Revision summary
Fifteen judges serve nine-year terms after parallel Assembly and Council elections. Legal-system representation is a Statute goal; ad hoc judges fill nationality gaps. Contentious jurisdiction is consent-based: compromis, treaty, or optional clause. Article 36(2) declarations usually carry reservations and reciprocity. Advisory opinions and Article 94 enforcement sit beside, not inside, that voluntary core.
Model answer
Introduction
The International Court of Justice is the principal judicial organ of the United Nations. It sits at The Hague under the UN Charter and the ICJ Statute. Composition is elective. Jurisdiction in contentious cases is voluntary.
Body
Composition
- Article 3 of the Statute provides 15 judges. No two may be nationals of the same State.
- Judges are elected for nine-year terms by the General Assembly and the Security Council, voting independently. Five seats turn over every three years.
- The Statute asks for representation of the main forms of civilisation and the principal legal systems, not for a simple P5 court, though practice has often included a judge from each permanent member.
- Ad hoc judges may sit when a party has no national on the bench.
- Chambers, including a Chamber of Summary Procedure, may hear particular cases. Official languages are English and French.
- Only States may be parties in contentious proceedings. The Registry is the permanent secretariat.
Voluntary jurisdiction
- Consent is the gate. A State may accept jurisdiction by special agreement (compromis), by a treaty clause, or by a declaration under the optional clause of Article 36(2) of the Statute.
- Optional-clause declarations are often riddled with reservations as to time, subject, and reciprocity. The Court still needs a matching title of jurisdiction.
- Forum prorogatum and transfer from the Permanent Court of International Justice supply other consent paths.
- Advisory opinions requested by the General Assembly, the Security Council, or authorised agencies are not judgments between States. They do not rest on the same bilateral consent.
What voluntary means in practice
- Powerful States can stay outside a case, as the United States did after Nicaragua in the 1980s by limiting its optional-clause exposure.
- Judgments bind the parties to that case. Article 94 of the UN Charter points enforcement toward the Security Council, which remains political.
- Voluntary jurisdiction is therefore a legal technique of a society of sovereigns, not a world supreme court.
Flow diagram
flowchart TD S[ICJ Statute] --> J[15 judges elected] S --> O[Article 36 optional clause] O --> C[Consent reservations] C --> T[Contentious case] J --> T
Conclusion
The ICJ is a 15-judge UN court elected by the Assembly and the Council. Its contentious jurisdiction exists only where States have consented, especially through the optional clause with reservations. Composition is professional and representative in design. Power still sits at the consent gate.
Quick related
Students also ask
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Discuss the efficacy of global conventions to combat international terrorism
Next question on this syllabus topic (2022 · Q3(c)). View answer →
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Are all UN members under ICJ compulsory jurisdiction?
Members are parties to the Statute. A contentious case still needs a specific consent title.
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Can a person sue at the ICJ?
No. Only States are parties in contentious cases. Individuals use other courts and treaty bodies.
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Q7(b) · UPSC Mains 2024 · PSIR GS 2 · 15 marks
Critically examine India's persistent refusal to sign the nuclear non-proliferation treaty (NPT) despite being recognized as a de facto nuclear power.
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The NPT recognises five weapon states and asks others to stay non-nuclear; India rejected this as nuclear apartheid. China–Pakistan nuclear conditions and empty P5 disarmament made signature look like unilateral abstinence. There is still no legal path for India to join as a weapon state; the 2008 waiver worked around the treaty. Persistent refusal is therefore structural, not mood. Costs remain in export controls and non-proliferation politics; a test moratorium and minimum deterrence are how India manages them.
Q5(e) · UPSC Mains 2023 · PSIR GS 2 · 10 marks
What diplomatic steps has India taken to articulate the interests of the Global South in International Politics?
Contemporary Global Concerns
Global South diplomacy continues NAM and G77 in a new institutional setting. India hosted South summits and used G20 2023 to seat the African Union. ITEC, credit, vaccines, and UN peacekeeping are the material side. WTO food and IP fights remain part of the same file. China’s finance is the main competitor for Southern attention.
Q1(d) · UPSC Mains 2023 · PSIR GS 2 · 10 marks
What is the structure and functions of International Court of Justice?
Contemporary Global Concerns
The ICJ is the UN’s principal judicial organ, with 15 judges elected by the Assembly and the Council. Contentious cases are between States that have consented to jurisdiction. Advisory opinions answer legal questions from authorised UN bodies. Article 38 lists the sources the Court applies. Enforcement of judgments can go to the Security Council, which limits the Court against the P5.
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