++++ 1 . Officials - Social security - Insurance against accidents and occupational diseases - Medical report - Aggravation of invalidity following an altercation at work - Aggravation attributed by the medical report to a pre-existing occupational disease - Administration' s refusal to accept that the aggravation results from the official' s occupation - Inadmissible ( Staff Regulations of Officials, Art . 73 ) 2 . Officials - Actions - Prior complaint through administrative channels - Time-limits - Matter of public policy ( Staff Regulations of Officials, Arts 90 and 91 ) 3 . Officials - Actions - Prior complaint through official channels - Subject-matter and grounds must be the same in both cases ( Staff Regulations of Officials, Arts 90 and 91 )