International Court of Justice — Jurisdiction — Forum prorogatum — Rules of Court, Article 38(5) — Application of principle — Whether consent required to be given in particular form — Consent limited to claims formulated in Application — Events mentioned in the Application — Related events occurring after Application filed

International Court of Justice — Procedure — Application — Rules of Court, Article 38(1) and (2) — Requirement that Application specify precise nature of claim, together with a succinct statement of the facts and grounds on which the claim is based — Whether particular form required — Application to be read as a whole

International criminal law — Mutual criminal assistance — Letters rogatory — Requirement to execute letter rogatory or give valid reasons for not doing so — Convention on Mutual Assistance in Criminal Matters, 1986, between Djibouti and France — Witness summonses addressed to head of State and senior officials by foreign court

State immunity — Jurisdictional immunity — Head of State — Senior officials of State — Personal immunity of Head of State — Duty to accord respect to Head of State — Whether issuance of witness summons requesting his testimony a violation of immunity — Whether senior officials entitled to benefit from State immunity