ALPR systems capture license plate images from moving or stationary vehicles using high-resolution cameras installed on patrol cars or at fixed points such as intersections. The system then compares these plates against a database of stolen vehicles, wanted suspects, Silver Alerts (lost elderly persons), Amber Alerts (missing endangered youth), and other law enforcement alerts. Possible matches trigger instant notifications to officers, who then manually validate the possible match, helping them respond quickly.

BPD prohibits the use of ALPRs for traffic violations or citations. Use is limited to crimes such as homicides, shootings, robberies, arsons, sexual assaults, burglaries, aggravated batteries, stolen cars, hit and runs, etc.

By integrating ALPR technology with our existing Public Safety Camera network, in place since 2012, we enhance our ability to respond to incidents, solve crimes faster, and keep Bloomington safer. ALPR systems offer a powerful, data-driven tool for modern law enforcement operations.

Once ALPR photos are recorded, the data is encrypted and uploaded to a secure FBI CJIS compliant cloud server for a maximum of 30 days.  Any records not submitted as evidence in a criminal investigation are then automatically deleted from the ALPR system. ALPR data is accessible only to accessible only to specific department staff who receive initial and then re-occurring training on proper and acceptable use.  Bloomington Police Department only shares ALPR data to law enforcement agencies within Illinois.  Data from the ALPR system is also not sold or monetized.