Flock cameras in Lexington, KY are automated license plate readers operated by the Lexington Police Department, with 125 units positioned across Fayette County. They photograph passing vehicles, convert the plate into searchable data, and log vehicle characteristics like make, color, and body type. They do not run facial recognition, identify drivers, or issue traffic tickets.1
What the Cameras Capture
Each camera uses automated license plate recognition to photograph vehicles and turn the plate image into searchable text. Flock’s system goes beyond the plate itself through what the company calls Vehicle Fingerprint technology, which records attributes such as make, color, and body type. An investigator working from a witness description like “dark-colored pickup truck” can search on those attributes without a full plate number.
The cameras cannot identify people. Flock states that searches are based on vehicle characteristics, not on anyone inside the car. The hardware is not configured for traffic enforcement either. It does not clock speed, detect red-light violations, or generate citations of any kind.
Where the Cameras Are Located
The city publishes a map of all 125 camera locations on its official website. The cameras sit along major roads and high-traffic intersections throughout Fayette County, placed to capture as many vehicles as possible rather than to watch specific neighborhoods. The map is updated periodically and lives on the Lexington Police Department’s license plate reader page at lexingtonky.gov.
How Long Data Is Kept and Who Can See It
Lexington police retain license plate reader data for a maximum of 30 days, unless a longer period is required by Kentucky records retention schedules or the data has evidentiary value in an active investigation. After 30 days, non-flagged images are automatically deleted from the Flock system.
Before an officer can search the database, the system requires a documented reason for the query. That creates a digital paper trail for every search. The department audits those logs at least once per quarter to look for unauthorized or suspicious access. Under the department’s data-sharing policy, Flock data is shared only with other law enforcement agencies for legitimate investigative purposes.
How Alerts and Stops Work
The system compares every plate it reads against a hot list of vehicles linked to active investigations. A match triggers a real-time alert to officers. Hot list entries pull from several sources, including the FBI’s National Crime Information Center, which tracks stolen vehicles, wanted persons, missing persons, and protection orders. Agencies must have formal agreements with the FBI to receive NCIC data for ALPR use, and that data is refreshed twice daily. Amber Alerts for missing children and Silver Alerts for endangered adults can also trigger notifications.
An alert by itself is not supposed to be the reason you get pulled over. The Ninth Circuit Court of Appeals has ruled that an unverified ALPR alert alone does not justify a traffic stop. Officers must independently confirm the alert before initiating one. That matters because misread plates and stale hot list entries do occur.
Accuracy and Known Limitations
Independent testing by the security research firm IPVM found that Flock readers misidentified the state on roughly one in ten license plates, and vehicle characteristics like make were also regularly incorrect. Temporary paper plates, obscured tags, and poor weather further reduce accuracy. A camera that reads “ABC-1234” when the plate actually says “ABC-1284” can generate a false alert against an uninvolved driver. Verification before action is the safeguard against that.
The Legal Picture
Fourth Amendment
The law around license plate readers is still developing. A federal judge recently ruled that Flock camera surveillance does not violate the Fourth Amendment, a decision plaintiffs represented by the Institute for Justice are appealing. Privacy advocates argue that weeks of aggregated plate data can reveal where someone lives, worships, or seeks medical care. Law enforcement responds that plates are displayed in plain public view.
Proposed Kentucky Rules
Senate Bill 380, introduced in Kentucky’s 2024 Regular Session, would have imposed statewide restrictions on license plate reader use. The bill proposed:
- Requiring a search warrant before using ALPR data in criminal investigations
- Limiting collection to plate numbers and basic vehicle information
- Prohibiting individual tracking without a warrant or exigent circumstances
- Requiring automatic deletion of non-matching data within three minutes
- Specifying that a positive ALPR match alone does not constitute reasonable suspicion for a traffic stop, meaning officers must visually confirm the plate or develop independent grounds
SB 380 did not become law. Lexington’s program is currently governed by the police department’s internal policy rather than a Kentucky statute specifically addressing license plate readers. Whether similar legislation advances in future sessions will shape how the program operates going forward.
Where to Look It Up Yourself
The city’s license plate reader page on lexingtonky.gov lists the number of active cameras, links to the department’s written LPR policy, and includes the location map. Every database query carries a documented reason and is subject to quarterly audit. Residents with questions about the program can contact the Lexington Police Department through the city’s website.