Saturday, October 18, 2014

Cops Need a Warrant to Grab Your Cell Tower Data, Florida Court Rules



Americans may have a Florida drug dealer to thank for expanding our right to privacy.
Police departments around the country have been collecting phone metadata from telecoms and using a sophisticated spy tool to track people through their mobile phones—often without obtaining a warrant. But a new ruling out of Florida has curbed the activity in that state, on constitutional grounds. It raises hope among civil liberties advocates that other jurisdictions around the country may follow suit.
The Florida Supreme Court ruled Thursday that obtaining cell phone location data to track a person’s location or movement in real time constitutes a Fourth Amendment search and therefore requires a court-ordered warrant.
The case specifically involves cell tower data for a convicted drug dealer that police obtained from a telecom without a warrant. But the way the ruling is written (.pdf), it would also cover the use of so-called “stingrays”—sophisticated technology law enforcement agencies use to locate and track people in the field without assistance from telecoms. Agencies around the country, including in Florida, have been using the technology to track suspects—sometimes without obtaining a court order, other times deliberately deceiving judges and defendants about their use of the devices to track suspects, telling judges the information came from “confidential” sources rather than disclose their use of stingrays. The new ruling would require them to obtain a warrant or stop using the devices.
The American Civil Liberties Union calls the Florida ruling “a resounding defense” of the public’s right to privacy.