Here's How To Know If You've Been 'Flocked' In IL

Police in Illinois are among thousands of agencies nationwide using automated license plate readers to photograph vehicles and add the images to searchable databases.

Flock Safety, the largest provider of fixed license plate readers, says its cameras help police solve crimes, recover stolen vehicles and find missing or endangered people. Civil rights groups warn the same technology can track motorists who are not suspected of crimes and reveal trips to workplaces, medical clinics, religious centers or political events.

Flock says it has deployed about 120,000 cameras across 49 states. Its customers include more than 5,000 law enforcement agencies, along with local governments, businesses, schools, homeowner associations and property managers.

Residents can search Have I Been Flocked by state and police jurisdiction to review Flock audit logs obtained through public records requests. Depending on what records are available, users may see how often an agency searched the system, the reasons officers gave and whether a particular license plate appeared in the logs.

In Chicago, the police department made 405,508 searches and saw 7,874 plates between Jan. 25, 2023, and July 1, 2026. During that same timeframe, data shows the peak time for captures was 4 p.m. and the peak day was Wednesday.

Comparatively, the Cook County Sheriff's Office made 149,990 searches and saw 49 plates.

The open-source DeFlock project also maintains a crowdsourced map showing reported locations of automated license plate readers. The map is not an official or complete inventory, but it may identify cameras reported across Illinois.

Residents can also search police policies, city council agendas, meeting minutes, contracts and purchasing records for terms such as "Flock Safety" or "automated license plate reader."

Privacy advocates, including the American Civil Liberties Union and Electronic Frontier Foundation, have called for warrants, tighter limits on data sharing, shorter retention periods and regular audits. Flock rejects the description of its system as mass surveillance, arguing that its cameras capture vehicles only at fixed public locations rather than following them continuously.

Unless local rules or contracts specify otherwise, Flock says vehicle data is automatically deleted after 30 days.

• Read more: Crime-Solving Tool Or Mass Surveillance: Inside Flock’s Camera Network