By Patrick McDonald | Reason
Can state police track drivers everywhere they go via hundreds of license plate cameras? A new lawsuit says that Illinois’ widespread use of such cameras—called automatic license plate readers (ALPRs)—violates the Fourth Amendment’s prohibition against unreasonable searches because it breaches citizens’ reasonable expectations of privacy.
The complaint—filed by two residents of Cook County, Stephanie Scholl and Frank Bednarz, in the U.S. District Court for the Northern District of Illinois on May 30—names the Illinois State Police (ISP), ISP Director Brendan F. Kelly, Illinois Attorney General Kwame Raoul, and Gov. J.B. Pritzker as the defendants.
“Defendants are tracking anyone who drives to work in Cook County—or to school, or a grocery store, or a doctor’s office, or a pharmacy, or a political rally, or a romantic encounter, or family gathering—every day,” the lawsuit states, “without any reason to suspect anyone of anything, and are holding onto those whereabouts just in case they decide in the future that some citizen might be an appropriate target of law enforcement.”
Illinois’ highway camera network began in 2019 with the passage of the Tamara Clayton Expressway Camera Act, named for a postal worker who was shot and killed on an interstate highway south of Chicago. The act directed the state police to “increase the amount of cameras along expressways and the State highway system.”
Illinois State Police received a $12.5 million state grant in 2021 to install cameras, which was more than doubled in June 2022 when Pritzker extended the act, granting up to $20 million in additional funding. As of publishing time, the Illinois Department of Transportation has purchased 652 license plate cameras, of which 340 are installed in Cook County, which includes Chicago.
According to the ISP’s dashboard, in the past month, the system has recorded over 215 million “detections” (when a camera captures a digital image of a license plate) and over 1. 4 million “hits” (when a captured license plate matches a plate on the state police’s “Hot List,” which includes the license plate numbers of stolen vehicles and wanted subjects). Annually, the system records over 1.5 billion detections—more than 100 times the state’s population.
Read more here.
Related: “Illinois’ use of cameras that read license plates amounts to ‘dragnet surveillance,’ lawsuit alleges,” “Illinois sued over proliferation of license plate reading cameras”

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