Section 05
What the flock is this?
Automated license plate readers, explained without jargon and without telling you what to think about them.
What does the camera actually capture?
A photograph of a passing vehicle, a machine-read version of the plate characters, and a timestamp and location. Some systems also record vehicle attributes like color, body type, and visible damage.
Is it recording video of me?
ALPR systems are generally still-image systems triggered by passing vehicles rather than continuous video. That distinction matters less than retention: a still image with a time and place, stored for months, is a location record.
How long is it kept?
It depends entirely on the agency's policy and the contract. Retention periods differ widely between jurisdictions, and some states legislate a maximum. This is the single most important number to ask your town for.
Who else can see it?
Also policy-dependent. Many systems allow agencies to opt into sharing networks with other departments. Whether that sharing list is public, and whether it can change without a new vote, varies.
Why do people argue about this?
Supporters point to concrete investigative uses: stolen vehicles, missing persons, specific crimes. Critics point out that the records are collected on everyone, by default, before any suspicion exists — and that oversight of who searches them is often thin. Both concerns are about the same data set.
How do I find out what my town does?
Look for the vendor contract, the department's ALPR policy, budget line items, and council minutes approving the program. If they aren't posted, a public-records request usually gets them.
Where we get background
- EFF — Automated License Plate Readers (background explainer) ↗
- EFF / Atlas of Surveillance — surveillance technology database ↗
We link to outside organizations for background. Linking is not endorsement of every position those organizations hold.