s 50 Appointment may be made by office and with retrospective effect
Where under any written law the Yang di-Pertuan Agong, a State Authority, a Minister or any other authority is empowered to appoint a person to exercise any function, to be a member of any board, commission or similar body or to be or do any other thing, he may— (a) instead of appointing a person by name, appoint the holder of an office by the term designating the office; and (b) if he thinks fit, make the appointment with retrospective effect to a date not earlier than the commencement of the law under which it is made.