16.4—Investigation.
               		
               	 	
               	 	
               	 	               	 	               	 	               	 	               	 	
               	 	
    
        
        (a) 
         If an investigating official concludes that
 a subpoena pursuant to the authority conferred by
 31 U.S.C. 3804(a) is warranted—
     
    
        
        (1) 
         The subpoena so issued shall notify the
 person to whom it is addressed of the authority
 under which the subpoena is issued and shall
 identify the information, records, or documents
 sought;
     
    
        
        (2) 
         The investigating official may designate a
 person to act on his behalf to receive the
 information, records, or documents sought; and
     
    
        
        (3) 
         The person receiving such subpoena shall be
 required to tender to the investigating official
 or to the person designated to receive the
 information, records, or documents, a
 certification that the information, records, or
 documents sought have been produced, or that such
 information, records, or documents are not
 available and the reasons therefor, or that such
 information, records, or documents, suitably
 identified, have been withheld based upon the
 assertion of an identified legal privilege.
     
    
        
        (b) 
         If the investigating official concludes
 that an action under the Program Fraud Civil
 Remedies Act may be warranted, the investigating
 official  shall report the
 findings and conclusions of such investigation to
 the reviewing official.
     
    
        
        (c) 
         Nothing in this section shall preclude or
 limit the investigating official's discretion to
 refer allegations directly to the Department of
 Justice for suit under the False Claims Act, 31
 U.S.C. 3729-373 1, or for other civil relief, or to
 preclude or limit such official's discretion to
 defer or postpone a report or referral to avoid
 interference with an investigation into criminal
 misconduct or a criminal prosecution.
     
    
        
        (d) 
         Nothing in this section modifies any
 responsibility of the investigating official to
 report violations of criminal law to the Attorney
 General.