COMMISSION ON HUMAN RIGHTS AND ADMINISTRATIVEJUSTICE  v  ATTORNEY- GENERAL Courts-Jurisdiction-Supervisory jurisdiction-Exercise by Commission on Human Rights and Administrative Justice-Power to confer supervisory jurisdiction - statutory-Commission on Human Rights and Administrative Justice vested with investigative and educational functions by Constitution and enabling Act-CHRAJ exercising certain powers of courts and tribunals in performance of investigative functions-No power of enforcement granted CHRAJ- Whether CHRAJ constituted a regular court or tribunal- Whether CHRAJ can review decisions of or exercise supervisory jurisdiction .over courts or tribunals set up by AFRC or PNDC-Constitution, ]992, arts 2]8 and 2]9-Commission on Human Rights and Administrative Justice Act, ]993 (Act 456), ss 7-9.