>The FBI's role in the process is a condition of the Federal Communication Commission's equipment authorization issued to the Harris Corporation.
The result is that members of the public, judges, and defense attorneys are denied basic information about local cops' use of invasive surveillance gear that can sweep up sensitive location data about hundreds of peoples' cell phones. For example, when we sought information about Stingrays from the Brevard County, Florida, Sheriff's Office, they cited a non-disclosure agreement with a "federal agency" as a basis for withholding all records. When the ACLU of Arizona sued the Tucson Police Department for Stingray records, an FBI agent submitted a declaration invoking the FBI nondisclosure agreement as a reason to keep information secret.
Yeah it works really well
(I'm of the opinion they're a Fourth Amendment violation, and quite a few court cases are winding their way through the system. Quite a few judges have already ruled against their warrantless use. https://en.wikipedia.org/wiki/Stingray_use_in_United_States_...)