Location Tracking

Massachusetts High Court to Become Latest to Rule on Warrant Requirement for Cell Phone Tracking

Massachusetts High Court to Become Latest to Rule on Warrant Requirement for Cell Phone Tracking

By Kade Crockford, Director, ACLU of Massachusetts Technology for Liberty Project at 3:24pm
Should the police be required to get a warrant in order to monitor our location via our cell phones?
"GPS Bullets" Allow Police to Shoot a Tracker Onto a Car

"GPS Bullets" Allow Police to Shoot a Tracker Onto a Car

By Jay Stanley, Senior Policy Analyst, ACLU Speech, Privacy & Technology Project at 9:54am

We've started getting a few calls asking us what we think of new GPS tracking devices that police can shoot at a car that they are pursuing from a launcher mounted to the front grille of their car. The device sticks to the car, allowing the police…

Mobile Phone Surveillance by the Numbers

Mobile Phone Surveillance by the Numbers

By Chris Calabrese, Legislative Counsel, ACLU Washington Legislative Office at 10:56am

Wow.  Sometimes one word says it all.  The New York Times reports that in response to letters from Rep. Edward Markey (D-MA) and Rep. Joe Barton (R-TX), mobile phone providers disclosed that they received approximately 1.3 million law enforcement…

Federal Appeals Court Rules the Government Can Track Your Cell Phone Without a Warrant

Federal Appeals Court Rules the Government Can Track Your Cell Phone Without a Warrant

By Catherine Crump, Staff Attorney, ACLU Speech, Privacy and Technology Project at 5:12pm

It has long been our position that the government must obtain a warrant based on probable cause before engaging in surveillance of people's historical cell phone location information. Today, our efforts were dealt a setback. Over a strong dissent,…

Federal Judge: Only Powered-Off Cell Phones Deserve Privacy Protections

Federal Judge: Only Powered-Off Cell Phones Deserve Privacy Protections

By Chris Soghoian, Principal Technologist and Senior Policy Analyst, ACLU Speech, Privacy, and Technology Project at 11:27am

A federal magistrate judge in New York recently ruled that cell phone location data deserves no protection under the Fourth Amendment and that accordingly, the government can engage in real-time location surveillance without a search warrant. In an opinion straight from the Twilight Zone, magistrate judge Gary Brown ruled two weeks ago that “cell phone users who fail to turn off their cell phones do not exhibit an expectation of privacy.”

The case in question involved a physician who the DEA believed had issued thousands of prescriptions for pain killers in exchange for cash. In March of this year, the DEA had obtained a warrant for his arrest, and,

Blurred car lights at night

Location Apps Sharing Data With Governments

By Jay Stanley, Senior Policy Analyst, ACLU Speech, Privacy & Technology Project at 12:00pm

(Update: correction below)

Forbes reported last week that the crowdsourced mapping location service Waze is beginning to share bulk location data with government bodies—with Rio de Janeiro since 2013, and soon with the state of Florida. The…

Use of Automated License Plate Readers Expanding in Northern California, and Data is Shared With Feds

Use of Automated License Plate Readers Expanding in Northern California, and Data is Shared With Feds

By Matthew Cagle, Technology and Civil Liberties Policy Fellow, ACLU of Northern California at 10:51am

The feeling of freedom that comes from driving down California’s sunny open roads is at risk—and rising gas prices are not to blame. Our investigations show that at least twenty Northern California law enforcement entities as well as the California…

Court Says No GPS Tracking? How About Cell Phone Tracking?

Court Says No GPS Tracking? How About Cell Phone Tracking?

By Sarah Roberts, Speech, Privacy and Technology Project at 12:55pm

After the Supreme Court ruled the police cannot attach a GPS device to a suspect's car to track them, law enforcement is trying to use cell phone location data to get the same information.

"Limited Only by the Imagination": The Need for Legal Limits on License Plate Reader Use

"Limited Only by the Imagination": The Need for Legal Limits on License Plate Reader Use

By Allie Bohm, Advocacy & Policy Strategist, ACLU at 10:13am

If you've been following our work on license plate readers, by now you know that if you're driving, your license plate is likely being photographed...

New Results From Our Nationwide Cell Phone Tracking Records Requests

New Results From Our Nationwide Cell Phone Tracking Records Requests

By Allie Bohm, Advocacy & Policy Strategist, ACLU at 2:04pm

It’s been over a year since 35 ACLU affiliates filed over 380 public records requests with state and local law enforcement agencies seeking information about their policies, procedures, and practices for tracking cell phones. And 13 months later…

Statistics image