San Jose ALPR lawsuit filed
A lawsuit alleges San Jose’s network of more than 500 automated license‑plate reader cameras amounts to an unconstitutional surveillance network. The legal challenge raises questions about municipal ALPR deployment and the limits of automated urban surveillance. (x.com)
Three San José residents sued the city and police on April 15, saying its 474-camera license plate reader system tracks ordinary drivers without a warrant. (kqed.org) The federal class action was filed in San Jose by the Institute for Justice, and it asks a judge to order most plate-reader data deleted within 24 hours. (mercurynews.com) Automated license plate readers are roadside cameras that photograph every passing plate, then store the plate number, vehicle details, time, and location in a searchable database. San José’s system uses cameras made by Flock Safety. (aclunorcal.org) The complaint says San José Police and other agencies can use that database to reconstruct where a car has been over time, even when there is no warrant or probable cause. The plaintiffs say that turns routine driving into a Fourth Amendment search. (kqed.org) This suit lands after months of fights over the same network. In November 2025, the Electronic Frontier Foundation and the American Civil Liberties Union of Northern California filed a separate state-court case on behalf of SIREN and CAIR-CA challenging the city’s warrantless searches of stored plate data. (aclunorcal.org) City Hall already changed the rules once. On March 10, the City Council voted unanimously to cut default data retention from one year to 30 days and to bar cameras near abortion clinics, gender-affirming care facilities, consulates, and places of worship. (sanjosespotlight.com) The revised policy also requires outside law-enforcement agencies to provide more documentation before searching San José’s database, though they still do not need a warrant. San José already bars use of the system for immigration-status investigations and for monitoring protests or rallies. (sanjosespotlight.com) Mayor Matt Mahan said at the March 10 meeting that the city had “struck the right balance.” Critics at that meeting urged San José to drop Flock entirely, while supporters said the cameras help a short-staffed police department investigate crime. (sanjosespotlight.com) KQED reported that Flock’s system lets participating agencies share searches across wider networks through state or national lookup options. That data-sharing feature sits at the center of the San José plaintiffs’ claim that a local camera network can become a broader map of residents’ movements. (kqed.org) The new case now asks a federal judge to decide whether San José’s scaled-back rules are enough, or whether the city’s camera grid still crosses the line from policing into mass tracking. (kqed.org)
