Your Phone Is Now a Police Tracking Device: The Rise of Sensorveillance

What Happened A comprehensive analysis by George Washington University law professor Andrew Guthrie Ferguson reveals how everyday technology has transformed into a pervasive surveillance network. In his book “Your Data Will Be Used Against You: Policing in the Age of Self-Surveillance,” Ferguson documents how law enforcement agencies have repurposed consumer devices and services into powerful tracking tools. The research exposes several key surveillance mechanisms: Geofence Warrants: Police can request data on all phones within a 150-meter radius of a crime scene.