International Court of Justice — Provisional measures of protection — Requirement of prima facie basis for jurisdiction — Criteria for indication of provisional measures — Risk of irreparable damage to rights — Urgency — Whether Court entitled to grant measures without hearing in case of extreme urgency — Death penalty case — Measures granted against federal State regarding acts to be taken by constituent State of federation

Consular relations — Right of access to consul — Vienna Convention on Consular Relations, 1963, Article 36 — Optional Protocol — German national sentenced to death in the United States of America — Failure to inform of right of access to consul — Whether violation of Article 36 — Whether violation invalidating death sentence