1 . OFFICIALS - APPEAL - ACT ADVERSELY AFFECTING AN OFFICIAL - LIST OF SUITABLE CANDIDATES DRAWN UP BY A SELECTION BOARD - DISCRETION OF THE APPOINTING AUTHORITY - PREPARATORY MEASURE - CONTESTATION IN AN ACTION DIRECTED AGAINST THE APPOINTMENT OF A SUCCESSFUL CANDIDATE ( STAFF REGULATIONS , ARTS 90 AND 91 ) 2 . OFFICIALS - RECRUITMENT - COMPETITION - CANDIDATES ' PRACTICAL EXPERIENCE - CRITERIA OF ASSESSMENT - DETERMINATION IN THE DISCRETION OF THE SELECTION BOARD - LIMITS ( STAFF REGULATIONS , ANNEX III , ART . 5 )