The Schaumburg Police Department shares automated license-plate-reader data with more than 400 Illinois law-enforcement and government agencies [1].
The revelation highlights the expansive reach of digital surveillance networks in the U.S. and raises questions about the scale of data sharing between local and state authorities.
Information regarding the network came to light through a public-records request filed by a researcher from Georgia. The researcher, associated with the "Have I Been Flocked" project, sought to uncover the breadth of the state's automated license-plate-reader (ALPR) system [1], [3].
ALPR systems use high-speed cameras to capture license plate numbers as vehicles pass through specific points. This data is then stored in databases that can be searched by authorized users to track vehicle movements or locate suspects.
According to the findings, the Schaumburg Police Department, located in a suburb of Chicago, serves as a hub for this information [2]. The data is accessible to more than 400 different agencies across Illinois [1].
The request was part of a broader effort to expose how mass surveillance tools are deployed and shared among government entities. The project aims to bring transparency to the use of ALPR technology, which often operates without significant public oversight or specific legislative constraints regarding data retention, and access [3].
Law enforcement agencies said that these networks are essential for solving crimes and finding missing persons. However, privacy advocates said that the ability to track thousands of innocent drivers in real time creates a permanent record of movement that infringes on civil liberties [3].
“The Schaumburg Police Department shares automated license-plate-reader data with more than 400 Illinois law-enforcement and government agencies.”
The scale of this network suggests that local police departments are no longer operating isolated surveillance silos but are instead contributing to a centralized, statewide intelligence web. When a single suburban department provides data access to hundreds of other agencies, it effectively expands the surveillance footprint far beyond the jurisdiction of the agency that installed the cameras.
