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Article 62 provides the major procedural device by which the interests of States not party to proceedings before the ICJ are protected by the Court. The procedure is termed intervention. Intervention: is based, inter alia, on the need for the avoidance of repetitive litigation as well as the need for harmony of principle, for a multiplicity of cases involving the same subject-matter could result in contradictory determinations which obscure rather than clarify the applicable law.


This material was originally published in The Statute of the International Court of Justice: A Commentary, edited by Andreas Zimmermann, Christian Tomuschat, and Karin Oellers-Frahm and has been reproduced by permission of Oxford University Press. For permission to reuse this material, please visit