1 . OFFICIALS - RECRUITMENT - COMPETITIONS - COMPETITION BASED ON QUALIFICATIONS AND TESTS - CONSIDERATION GIVEN TO CANDIDATES ' QUALIFICATIONS FOR THE PURPOSE OF ADMISSION TO THE COMPETITION - LIST OF SUITABLE CANDIDATES DRAWN UP BY REFERENCE SOLELY TO THE RESULTS OF THE TESTS - SUCCESSFUL CANDIDATES CHOSEN FOR APPOINTMENT WITHOUT REGARD TO QUALIFICATIONS - WHETHER LAWFUL 2 . OFFICIALS - RECRUITMENT - COMPETITION - ORDER IN WHICH SUITABLE CANDIDATES ARE LISTED - CHOICE OF SUCCESSFUL CANDIDATES FOR APPOINTMENT - DISCRETION ENJOYED BY THE APPOINTING AUTHORITY - LIMITS - INTERESTS OF THE SERVICE ( STAFF REGULATIONS , ART . 30 ) 3 . OFFICIALS - TEMPORARY OCCUPATION OF A POST - SELECTION OF THE OFFICIAL TO BE CALLED UPON TO OCCUPY A POST TEMPORARILY - DISCRETION ENJOYED BY THE APPOINTING AUTHORITY ( STAFF REGULATIONS , ART . 7 ( 2 ))