Growing Presence in the Courtroom: Cellphone Data as Witness
There's a surge in law enforcement's use of increasingly sophisticated cellular tracking techniques to keep tabs on suspects before they are arrested and build criminal cases against them by mapping their past movements. But cellphone tracking is raising concerns about civil liberties in a debate that pits public safety against privacy rights. Existing laws do not provide clear or uniform guidelines: Federal wiretap laws, outpaced by technological advances, do not explicitly cover the use of cellphone data to pinpoint a person's location, and local court rulings vary widely across the country. Civil libertarians do not oppose using cellphone surveillance to solve crimes or save people in emergencies, but they worry that the legal gray area is enabling it to happen without much scrutiny or discussion.