International organizations — Officials — Terms and conditions of employment — Legal position of official determined by terms of appointment — Fixed term appointment — Whether giving rise to legitimate expectation of permanent appointment — Whether refusal of permanent appointment justified — Whether respondent had acted arbitrarily or improperly — Whether correct procedures followed

International tribunals — International administrative tribunals — World Bank Administrative Tribunal — Jurisdiction — Late application — Procedure — Review of decisions — Grounds for review — Tribunal not to substitute own discretion for that of decision maker