1 . OFFICIALS - RECRUITMENT - VACANCY NOTICE - DUTY OF ADMINISTRATION TO FILL VACANCY - NONE - RIGHT OF OFFICIAL ON LEAVE ON PERSONAL GROUNDS TO BE REINSTATED - NONE ( STAFF REGULATIONS OF OFFICIALS , ARTS 4 , 29 AND 40 ( 4 ) ( D )) 2 . OFFICIALS - LEAVE ON PERSONAL GROUNDS - REINSTATEMENT - RIGHT OF PERSON CONCERNED - CANNOT BE CONTESTED ON GROUND OF AN ADMINISTRATIVE PRACTICE LIMITING RECRUITMENT TO TEMPORARY EMPLOYEES ( STAFF REGULATIONS OF OFFICIALS , ART . 40 ( 4 ) ( D ))