by the United Nations

“ A person who for the purposes of membership of the Chambers of the International Tribunal could be regarded as a national of more than one State shall be deemed to be a national of the State in which that person ordinarily exercises civil and political rights.
5. The Secretary-General may, at the request of the President of the International Tribunal appoint, from among the ad litem judges elected in accordance with Article 13 ter, reserve judges to be present at each stage of a trial to which they have been appointed and to replace a judge if that judge is unable to continue sitting. ”

“ Three permanent judges and a maximum at any one time of nine ad litem judges shall be members of each Trial Chamber. Each Trial Chamber to which ad litem judges are assigned may be divided into sections of three judges each, composed of both permanent and ad litem judges, except in the circumstances specified in paragraph 5 below. A section of a Trial Chamber shall have the same powers and responsibilities as a Trial Chamber under the Statute and shall render judgement in accordance with the same rules. ”

“ In the event that a reserve judge replaces a judge who is unable to continue sitting, he or she will, as of that time, benefit from the provisions of paragraph 1 above.
This work is excerpted from an official document of the United Nations. The policy of this organisation is to keep most of its documents in the public domain in order to disseminate "as widely as possible the ideas (contained) in the United Nations Publications". ”