67. As explained in paragraph 82 below, the “wall” in question is a complex construction, so that that term cannot be understood in a limited physical sense. However, the other terms used, either by Israel (“fence”) or by the Secretary‑General (“barrier”), are no more accurate if understood in the physical sense. In this Opinion, the Court has therefore chosen to use the terminology employed by the General Assembly.

Functions of the Court

The Court has a dual role: to settle in accordance with international law the legal disputes submitted to it by States, and to give advisory opinions on legal questions referred to it by duly authorized international organs and agencies.

Composition

The Court is composed of 15 judges elected to nine-year terms of office by the United Nations General Assembly and Security Council sitting independently of each other. It may not include more than one judge of any nationality. Elections are held every three years for one-third of the seats, and retiring judges may be re-elected. The Members of the Court do not represent their governments but are independent magistrates.

The judges must possess the qualifications required in their respective countries for appointment to the highest judicial offices, or be jurists of recognized competence in international law. The composition of the Court has also to reflect the main forms of civilization and the principal legal systems of the world.

When the Court does not include a judge possessing the nationality of a State party to a case, that State may appoint a person to sit as a judge ad hoc for the purpose of the case.

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‏² http://www.freedomhouse.org/research/freeworld/2004/...