Public records, sharing-network analysis, and policy review across California's Automated License Plate Reader programs. The tooling here grew out of an investigation into the San Mateo Police Department's program (see findings below) and is now California-wide.
Interactive map of California agencies sharing ALPR data through the Flock Safety network. Click an agency to see who it shares with.
Top 3 agencies in each category: most shares, most flags, most cameras, most plate lookups, and more.
Printable compliance report for any California ALPR agency: sharing network, transparency checklist, peer comparisons, and SB 34 concerns. Swap ?agency= to load another (e.g. ?agency=atherton-ca-pd).
News and analysis on ALPRs across California. Filter by tag (audits, ICE access, terminations, etc.) and by agency mentioned.
What people enter in the "reason" field when running ALPR searches, across every California agency that publishes its audit log.
Live status of the data pipeline: transparency portals due for a re-crawl (recomputed in your browser against the crawler's own timer) and where each news article sits in the curation queue.
Full findings document on the San Mateo Police Department's ALPR program — source citations, QR codes, and appendices. Renders inline; no download triggered.
Same document in markdown, viewable inline.
Every California Public Records Act request filed in the SMPD investigation, with full request text, agency response timeline, and links to every produced file. Reusable as a template for filings in other cities.