16.14—Separation of functions.
               		
               	 	
               	 	
               	 	               	 	               	 	               	 	               	 	
               	 	
    
        
        (a) 
         The investigating official, the reviewing
 official, and any employee or agent of the
 authority who takes part in investigating,
 preparing, or presenting a particular case may
 not, in such case or a factually related case—
     
    
        
        (1) 
         Participate in the hearing as the ALJ;
     
    
        
        (2) 
         Participate or advise in the initial
 decision or the review of the initial decision by
 the authority head, except as a witness or a
 representative in public proceedings; or
     
    
        
        (3) 
         Make the collection of penalties and
 assessments under 31 U.S.C. 3806.
     
    
        
        (b) 
         The ALJ shall not be responsible to, or
 subject to the supervision or direction of the
 investigating official or the reviewing
 official.
     
    
        
        (c) 
         Except as provided in paragraph (a) of this
 section, the representative for the Government may
 be an attorney employed anywhere in the Legal
 Division of the Department, or an attorney
 employed in the offices of either the
 investigating official or the reviewing official;
 however the representative of the Government may
 not participate or advise in the review of the
 initial decision by the authority head.