Are Your Local Police Using Flock Safety ALPRs to Scan for Immigrants?

When a car passes an automated license plate reader (ALPR), its plate is captured and instantly compared against a list of vehicles that police are actively looking for or that police have identified for real-time surveillance. These are called “hotlists,” and EFF has learned that one used by agencies across the country targets immigrants on behalf of Immigration and Customs Enforcement (ICE). Agencies using Flock Safety ALPR systems commonly allow the plates their cameras collect to be compared against the FBI's National Crime Information Center (NCIC) hotlists. These hotlists are broken into "topics," such as "Gang or Suspected Terrorist," "Stolen Vehicle," and "Missing Person." Flock Safety told EFF via email: "Local agencies add/remove license plates from the NCIC list. The FBI curates the NCIC list, and pushes it out to local agencies. Once the list leaves the FBI, they do not see any agency alerts. They only see when a local agency adds or removes plates from the list." But