Black Swan Technologies · Guardian

Guardian — Distributed Missing Persons Detection

Privacy‑preserving facial pattern recognition for the missing, the trafficked, and the wanted.

Compare a Photo

Upload a photograph to compare against 3,695 active reference encodings from FBI, NamUs, and Interpol. The image is deleted immediately after comparison.

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Click to select a photo

JPG, PNG, HEIC · Max 10 MB

Submit a Tip to Law Enforcement

If you believe this match is reliable, submit a tip. Tips are anonymized.

About Guardian

Guardian converts reference photos from public databases into 512‑dimensional mathematical vectors. When a query photo is submitted, only the math compares — the image is deleted immediately. Guardian is a research and public‑safety tool, not a verified identification system.

Privacy Architecture

Zero image retention. Every submitted photo is permanently deleted after comparison. No biometric templates or facial encodings are stored from queries. Our database contains only one‑way vectors from publicly available reference photos.