REPUBLIC v. INSPECTOR-GENERAL OF POLICE; EX PARTE CANTARA Administrative law—Judicial tribunals—Police disciplinary authorities—Appointment of superior officer to hold inquiry—Person entitled to make appointment—S, a superior officer, appointed by regional board constituted by two members to conduct inquiry into charges against C—Appointment of S revoked by A, a member of regional board in favour of D— Inquiry conducted by D into charges against C—Validity of appointment of D—Whether A alone has power to make the appointment—Respondent contending acquiescence by C in usurpation of jurisdiction by D—C unaware of irregularity in appointment of D—C not guilty of acquiescence—Police Force (Disciplinary Proceedings) Regulations, 1974 (L.I. 993), reg. 2 (3).