Judges and District Attorneys Must Hide the Use of Stingrays, or Face the Wrath of the FBI

​Cell-site simulators, often known by the trade name “stingrays,” are used by law enforcement to mimic cell towers, spoofing mobile devices into giving up their owners’ location and other personal data. Thousands of stingrays have been deployed around the country, fueled by federal grants to state and local police.
 
PPSA has long reported that the FBI severely restricts what local police and prosecutors can reveal about the use of stingrays in trials. Now we can report that these practices are continuing and interfere with prosecutors’ duty to participate in discovery and turn over potentially exculpatory evidence.
 
The government’s response to a PPSA FOIA request reveals a standard non-disclosure agreement between the federal government and state and local police departments. This template includes a directive that the locals “shall not, in any civil or criminal proceeding, use or provide any information concerning the [redacted] wireless collection equipment/technology.” This includes any documents and “evidentiary results obtained through the use of the equipment.”
 
The agreement also states that if the agency “learns that a District Attorney, prosecutor, or a court” is considering releasing such information, the customer agency must “immediately notify the FBI in order to allow sufficient time for the FBI to intervene …” Most likely the squeeze will come with a threat to end the provision of stingrays to the state or local police, but other forms of intimidation cannot be ruled out.
 
Got that, judges and district attorneys? Any attempt to fully disclose how evidence was obtained, even if it would serve to clear a defendant, must be withheld from the public and defense attorneys or the FBI will want a word with you.