International organization and administration — The United Nations — The General Assembly — Authority of General Assembly under UN Charter, 1949, Article 101 — Power to amend Staff Rules and Regulations retroactively — UN Administrative Tribunal

International organization and administration — International officials — Repatriation grant upon retirement — Purpose of — Whether an acquired right — Whether evidence of relocation required — United Nations Staff Rules and Regulations — Transitional scheme established by United Nations Secretary-General — Change in practice through General Assembly resolution — Authority under United Nations Charter, Article 101 — Whether failing to recognize acquired right of repatriation grant without providing evidence of relocation — Whether a disregard of Staff Rules and Regulations — Compensation