1 . OFFICIALS - RECRUITMENT - PROCEDURES - CHOICE - CONSIDERATION OF POSSIBILITIES OF PROMOTION WITHIN THE INSTITUTION - ADMINISTRATION ' S DISCRETIONARY POWER ( STAFF REGULATIONS , ART . 27 , FIRST PARA ., ART . 29 ( 1 )) 2 . OFFICIALS - RECRUITMENT - PROCEDURES - CHOICE - CONSIDERATION OF CANDIDATURES FROM WITHIN THE INSTITUTION - ADMINISTRATION ' S DISCRETIONARY POWER - REJECTION OF INTERNAL CANDIDATURES - REVIEW BY THE COURT - LIMITS - APPOINTMENT BY TRANSFER OF AN EXTERNAL CANDIDATE REGARDED AS FROM THE OPENING OF THE RECRUITMENT PROCEDURE AS BEING THE MOST SUITABLE - FACTOR NOT SUFFICIENT IN ITSELF TO JUSTIFY CONCLUSION THAT THE CONSIDERATION GIVEN TO THE INTERNAL CANDIDATURES WAS DEFECTIVE ( STAFF REGULATIONS , ART . 27 , FIRST PARA ., ART . 29 ( 1 ))