A routine request in Florida for public records regarding the use of a surveillance tool known as stingray took an extraordinary turn recently when federal authorities seized the documents before police could release them.
The surprise move by the U.S. Marshals Service stunned the American Civil Liberties Union, which earlier this year filed the public records request with the Sarasota, Florida, police department for information detailing its use of the controversial surveillance tool.
The ACLU had an appointment last Tuesday to review documents pertaining to a case investigated by a Sarasota police detective. But marshals swooped in at the last minute to grab the records, claiming they belong to the U.S. Marshals Service and barring the police from releasing them.
ACLU staff attorney Nathan Freed Wessler called the move “truly extraordinary and beyond the worst transparency violations” the group has seen regarding documents detailing police use of the technology.
“This is consistent with what we’ve seen around the country with federal agencies trying to meddle with public requests for stingray information,” Wessler said, noting that federal authorities have in other cases invoked the Homeland Security Act to prevent the release of such records. “The feds are working very hard to block any release of this information to the public.”
Stingrays, also known as IMSI catchers, simulate a cellphone tower and trick nearby mobile devices into connecting with them, thereby revealing their location. A stingray can see and record a device’s unique ID number and traffic data, as well as information that points to its location. By moving a stingray around, authorities can triangulate a device’s location with greater precision than is possible using data obtained from a carrier’s fixed tower location.