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The Guardian — Technology · November 2, 2026 · On the brief until November 16, 2026

Police use facial recognition to scan one million faces in WA trial leading to 122 arrests

Criminal JusticePublic PolicyLaw
THE AI ANGLE
Scanning faces in public crowds against police watchlists

Western Australia police completed a five-month mobile facial recognition trial, scanning nearly 1.4 million faces in public places and making 122 arrests. The operation yielded nine false alerts and drew criticism from legal advocates regarding mass biometric monitoring without individual suspicion. The results push legal and policy professionals to scrutinize how police forces define error rates and privacy safeguards during public surveillance.

Summary written by AI Business Lens with an AI model from the article at theguardian.com. It is not the article, and the publisher has not reviewed it. For publishers.

THE TEACHING ANGLE
Practitioners can debate whether scanning public crowds without reasonable suspicion meets democratic standards for privacy and proportionality.

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