Police generally need a warrant to look at records that reveal where cellphone users have been, the Supreme Court ruled Friday in a big victory for privacy interests in the digital age. The justices' ...

Immigration and Customs Enforcement agents use an array of surveillance technologies, from helping decide who to stop and detain to identifying and monitoring protestors and legal observers.

RICHMOND, Va. (CN) — A Maryland man arrested after police used a device mimicking a cellphone tower to find his phone — and ...

MADISON (AP) - The Wisconsin Supreme Court sided with police in two separate cases Thursday where cellphone data was used to track suspects without obtaining a search warrant, drawing a sharply-worded ...

The public doesn't have a right to information on criminal cases involving warrantless cellphone tracking if the defendant was acquitted or had their case dismissed, a federal appeals court in ...

The American Civil Liberties Union of North Carolina is joining a coast-to-coast effort to determine how often local law-enforcement agencies use cellphones to track people. The ACLU of North Carolina ...

AUSTIN, Texas (AP) — The suspected Austin bomber is dead after terrorizing Texas' capital city for three weeks. And in the end the manhunt wasn't cracked by hundreds of phoned-in tips, the big pot of ...