UK Deploys Facial Age AI That Misidentifies Children as Adults

The British government knows its facial age estimation systems routinely mistake children for adults, yet it plans to deploy the tech on asylum seekers starting next year. An internal government report, obtained by WIRED, Lighthouse Reports, and The Independent, documents tests showing FAE systems contain serious bias problems that directly impact the largest group of migrants subject to age assessments in 2025.

The Flawed Tech Being Deployed

Facial age estimation (FAE) works by scanning a face and outputting a predicted age. The UK Home Office wants to use it for asylum seekers who arrive without documents proving their age. If children are incorrectly classified as adults, they lose legal protections and get placed in adult-only detention centers.

This move is believed to be the first time FAE has been used for such a high-stakes offline decision. The internal report shows the systems are not reliable enough for this purpose. They regularly mistake children for adults, and the errors are not evenly distributed across demographics.

Why This Mistake Matters

Getting the age wrong for a child seeking asylum is not a minor inconvenience. Adult detention centers offer fewer protections, and vulnerable minors can face abuse or trauma. The UK government's own data shows the largest group of migrants subject to age assessments in 2025 will be the very population the FAE systems handle worst.

Age verification technology is already spreading online through social media bans and porn restrictions in half of US states. The UK is now pushing it into the physical world, where the consequences are immediate and irreversible.

What the Internal Report Reveals

The investigation by WIRED and collaborators obtained the Home Office's internal tests of multiple FAE systems. The report does not name specific vendors, but it details error rates high enough to make the technology unsuitable for this context. Bias appears to be a consistent problem, though the exact metrics are not publicly available in the summary.

Home Office data for 2025 shows which migrant groups will be subject to age assessments. The FAE systems perform worst on that exact group. The government is proceeding anyway, trading accuracy for administrative convenience.

Whether this deployment sets a precedent for other countries will depend on how many children end up in adult detention centers due to a bad AI guess.

Source: The UK will scan asylum-seekers' faces for age checks-despite knowing the tech is flawed
Domain: arstechnica.com