ALPR Watch

Automated license plate readers (ALPR / ANPR / LPR) are increasingly installed to monitor the movement of people. So we monitor their installation and use.

Looking for Louis Rossman's alpr.watch site?

Maps, navigation, and suspected locations

Where are ALPR installed? Let's find out

• Live feed of ALPR found on openstreetmap
• Car routing to avoid ALPR, also available in the DeFlock app
• Possible locations for ALPR based on various data sources, also available in the DeFlock app

The DeFlock project is responsible for most of the data available:

• Deflock
• DeFlock App, which helps simplify mapping, directions, and other ALPR-related activity

Public records

We have gathered some of the data from MuckRock FOIA requests for easier exploration:

• Flock Safety in the Columbia River Gorge
• Overview of all FOIA requests of Flock Safety data

For a more complete view, check out Have I Been Flocked?

How can I help?

Head over to DeFlock or the ALPR Watch wiki to learn more about how to add ALPR to the map, look for leads on where ALPR might be located, or read some news articles about people working in this space.

If you know of places where people should go looking for installed ALPR, send us your leads and we will get the onto the map as quickly as possible.

If you can write code, documentation, marketing materials, or just generally want to help out, head over to our Gitlab and browse open issues.

How are ALPR used?

Law enforcement agencies use ALPR to track the movement of automobiles, typically by placing them at critical intersections in a pattern which makes it difficult to avoid surveillance. There are also mobile units which may be assembled on an as-needed basis.

Once set up, the cameras continuously record when a car passes by, storing the timestamp, license plate, and often metadata such an image of the car, its make and model, and other relevant information. These records are searchable by the owner of the camera, and by others depending on how the network is configured.

It is also possible in some systems (e.g. Flock Safety) to set up automatic surveillance for a given license plate, such that the user is notified whenever that car is seen within their network.

For more information about how often these systems are used and how extensively the data are shared, see resources such as Eyes on Flock and Have I Been Flocked? which summarize data from ALPR network operators.

Learn more

• DeFlock
• Eyes On Flock
• Have I Been Flocked?
• Eyes Off Cedar Rapids
• (Louis Rossman's) ALPR Watch

Donate to help support our work

Our primary direct expenses are web hosting. Your donations help keep our servers online and our developers caffeinated.

Fiat:

XMR: 872i89G4hNbigDTfwSYTUnHA7YUkS7NLFiNYGk9exFKtZhPvaVuqCyA82x5oPMo6Yg4p6zPxhpq2UjLbBvF8exg5LpPc7wB

ETH: 0xcb7cc4f115164b2c3792e2aed892ad5f539d3133

BTC: bc1qkq24y369twgjmkcvukdt8tdk89n2yrhf324e6j

---

Home
Suspected locations
Navigation around ALPR
Wiki
News
Live ALPR map
Gitlab
Contact