Sainsbury’s is going all in on facial recognition. The UK’s second-largest supermarket chain is tripling its deployment, from 55 stores to 200 by the end of 2026.
The system, provided by Facewatch, scans shoppers’ faces and flags known shoplifters. Sainsbury’s says it works — 90% of identified individuals haven’t come back to the same store. But not everyone’s convinced.
Privacy campaigners are calling it “shameful.” Big Brother Watch wants shoppers to boycott the supermarket. The concern isn’t theoretical. One shopper was wrongly ejected from a store after a false facial recognition alert. Sainsbury’s apologized and promised better staff training, but the damage was done.
Critics argue mass surveillance isn’t a proportional response to shoplifting. Innocent customers shouldn’t have to submit to biometric identity checks just to buy groceries. The tech is getting better, sure. But “better” doesn’t mean perfect. And when you’re wrongfully flagged, perfect is the only standard that matters.
Sainsbury’s says the expansion builds on trials that started last year. Privacy advocates say it’s a dangerous precedent for retail surveillance in the UK. Someone’s going to end up in court over this — it’s just a matter of when.
