The Atlas of Surveillance – Documenting Police Tech in Our Communities with Open Source Research. “Explore 12,810 datapoints in the U.S. collected by hundreds of researchers. Last updated 7/15/25. TOGGLE the Legend to reveal how technology is spreading. ZOOM into any region to see the technologies in detail. If an area has no markers, it may mean it hasn’t been researched yet. To help collect more data, visit our Collaborate page. Prefer text? Check out our searchable database. This map will serve content from arcgis.com, a third-party host, which may restrict access for users on Tor or users with third-party cookies blocked. The map requires use of Javascript and is subject to the ArcGIS Privacy Policy. If you’re having trouble viewing the map, you can Search the Data instead.”