U.S. Department of Justice 
United States Marshals Service 
 Office of General Counsel 
 Cs‐4, 10TH Floor 
 Washington, DC  20530‐1000 

January 20, 2016 

Brad Heath 
USA Today 
7950 Jones Branch Drive 
McLean, VA  22108‐0605 
  RE:  

 Freedom of Information/Privacy Act Request No. 2015USMS26646 
   Subject:  Log of “IMSI” Use – Supplemental Release 

Dear Requester: 

The United States Marshals Service (USMS) is responding to your request for “a complete copy
of any log or index used by the U.S. Marshals Service or any of its seven Regional Fugitive Task Forces
identifying cases in which the agency has made use of an “IMSI catcher” device.
Pursuant to your request, the USMS conducted a search of the Investigative Operations Division and located a 
listing of IMSI catcher use.  Information pertaining third party individuals have been withheld pursuant to exemption 
(b)(7)(C) of the Freedom of Information Act (FOIA), 5 U.S.C. § 552(b).  Exemption 7(C) allows an agency to withhold 
records or information compiled for law enforcement purposes to the extent that the production could reasonably be 
expected to constitute an unwarranted invasion of personal privacy.  A discretionary release of such records or 
information would be in violation of the Privacy Act of 1974, 5 U.S.C. § 552a.  See also United States Department of 
Justice v. Reporters Committee for Freedom of the Press, 489 U.S. 749 (1989).   

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 If you are not satisfied with my response to this request, you may administratively appeal by writing to the 
Director, Office of Information Policy (OIP), United States Department of Justice, Suite 11050, 1425 New York Avenue, 
NW, Washington, DC 20530‐0001, or you may submit an appeal through OIP’s eFOIA portal at 
http://www.justice.gov/oip/efoia‐portal.html.  Please note that OIP is in the process of transitioning from its current 
eFOIA portal to the portal on FOIAonline.  Please visit the link above for instructions for submitting an appeal 
electronically.  Your appeal must be postmarked or electronically transmitted within 60 days of the date of my response 
to your request.  If you submit your appeal by mail, both the letter and the envelope should be clearly marked Freedom 
of Information Act Appeal. 
  
For  your  information,  Congress  excluded  three  discrete  categories  of  law  enforcement  and  national  security
records from the requirements of the FOIA.  See 5 U.S.C. 552(c ) (2006 & Supp. IV (2010)).  This response is limited to those
records that are subject to the requirements of the FOIA.  This is a standard notification that is given to all our requesters
and should not be taken as an indication that excluded records do, or do not, exist. 
  
  
  
                                                                                                Sincerely, 
  
  
  
                                                                                                                William E. Bordley 
                                                                                                                Associate General Counsel\FOIPA 
Officer 
                                                                                                                Office of General Counsel 
  
Enclosure 
  
  
  
  
  
From: Robinson, Nancy (USMS)
Sent: Wednesday, January 20, 2016 8:45 AM
To: 'Heath, Brad'
Cc: Wade, Darrius (USMS)
Subject: RE: FOIA Requests 2015USMS28646 

  
U.S. Department of Justice 
United States Marshals Service 
 

                                                                                                                    Office of General Counsel 
  
                                                                                                                    CS‐4, 10th Floor 
                                                                                                                    Washington, DC  20530‐1000        

  
                                 
  
  
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                                                                                                                January 20, 2016 
  
  
  
Brad Heath 
USA Today 
7950 Jones Branch Drive 
McLean, VA  22108‐0605 
  
                Re:  Freedom of Information Act Request No. 2015USMS28646 
Subject:  Log of “IMSI” Use  
  
Dear Requester: 
  

The United States Marshals Service (USMS) is responding to your request for “a complete copy of any
log or index used by the U.S. Marshals Service or any of its seven Regional Fugitive Task Forces identifying
cases in which the agency has made use of an “IMSI catcher” device.
We have determined to deny your request, because the records, or information, are exempt from
disclosure pursuant to exemption (b)(7)(C) of the Freedom of Information Act, 5 U.S.C § 552(b). Exemption
7(C) protects records or information compiled for law enforcement purposes to the extent that the production of
such records or information could reasonably be expected to constitute an unwarranted invasion of personal
privacy. A discretionary release of such records is not appropriate. See also United States Department of
Justice v. Reporters Committee for Freedom of the Press, 489 U.S. 749 (1989). 
 

If you are not satisfied with my response to this request, you may administratively appeal by writing to
the Director, Office of Information Policy (OIP), United States Department of Justice, Suite 11050, 1425 New
York Avenue, NW, Washington, DC 20530-0001, or you may submit an appeal through OIP’s eFOIA portal at
http://www.justice.gov/oip/efoia-portal.html. Please note that OIP is in the process of transitioning from its
current eFOIA portal to the portal on FOIAonline. Please visit the link above for instructions for submitting an
appeal electronically. Your appeal must be postmarked or electronically transmitted within 60 days of the date
of my response to your request. If you submit your appeal by mail, both the letter and the envelope should be
clearly marked Freedom of Information Act Appeal. 
For your information, Congress excluded three discrete categories of law enforcement and national
security records from the requirements of the FOIA. See 5 U.S.C. 552(c ) (2006 & Supp. IV (2010)). This
response is limited to those records that are subject to the requirements of the FOIA. This is a standard notification
that is given to all our requesters and should not be taken as an indication that excluded records do, or do not,
exist. 
  
  
                                                                                                                                Sincerely, 
  
                                                                                                                                 
                                                                                                                                 
                                                                                                                                William E. Bordley 
                                                                                                                                Associate General  
Counsel/ FOIPA Officer 
                                                                                                                                Office of General 
Counsel                                                             
                                                                                                                                 
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From: Heath, Brad [mailto:bheath@usatoday.com]
Sent: Tuesday, July 21, 2015 12:12 PM
To: USMS FOIA
Subject: FOIA Requests 

  
Please see the two attached FOIA requests.  
  
Brad Heath 
USA TODAY 
bheath@usatoday.com     P: 202 527‐9709     7950 Jones Branch Drive, McLean, Virginia 22108     @bradheath 

  

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