http://sls.iykpqm7jiradoeezzkhj7c4b33g4hbgfwelht2evxxeicbpjy44c7ead.onion/technologies/cell-site-simulators-imsi-catchers
For a while, police departments tried to keep the use of cell-site simulators secret from not just the public but also the court system, withholding information from defense attorneys and judges—likely due in part to non-disclosure agreements with Harris Corporation.