Opinion: The Screening Problem Most Facilities Are Still Getting Wrong

Security directors are under more pressure than at any point in recent memory. Violence in healthcare settings is accelerating. Schools are operating under new legislative mandates with real enforcement mechanisms. Cultural institutions and public venues are contending with threat environments that would have seemed extreme a decade ago. The investment in physical security is following that pressure upward, and yet a significant number of facilities are still deploying technology that was never designed for the environments it is now expected to protect.

Metal Detection Is Not Threat Detection

The core issue is that most screening technology alerts on metal. That is the entirety of what it does. In a hospital emergency department, a school with a one-to-one device program, or a museum processing thousands of visitors daily, that means security staff spend the majority of their time resolving alerts on items that pose no threat. Medical devices, laptops, keys, personal electronics, all of it triggers the same response as an actual weapon. The alert volume becomes unmanageable, shortcuts get made, and the system that was purchased to improve security quietly begins undermining it.

This is not a staffing problem or a training problem, though both matter. It is a technology selection problem. Walk-through metal detectors were built for environments where the screened population carries a narrow, predictable range of items. Schools, hospitals, and major cultural venues are not those environments.

When the British Museum evaluated screening options for its entrances, the requirement was to protect millions of annual visitors without creating the kind of bottleneck that would compromise the experience the museum has built over centuries. Testing showed that AI-powered multi-sensor detection processed visitors at up to 750 people per 15-minute interval per lane, with detection performance that materially exceeded prior methods. The system's portable design also allowed security teams to adjust screening perimeters based on event profile and visitor volume. That operational flexibility matters as much as the detection capability itself.

Healthcare presents a different version of the same problem. A clinic or emergency department cannot afford a screening process that delays care or makes patients feel interrogated before they are treated. The organizations that have deployed AI-powered detection in healthcare settings are not doing so to check a compliance box. They are doing it because the alternative, either no meaningful screening or screening that creates access friction for people in medical need, is operationally untenable.

Detection and Flow Must Work Together

What these deployments have in common is the recognition that detection accuracy and operational flow are not competing priorities. The facilities that treated them as a trade-off were the ones that ended up with expensive equipment that got worked around within weeks.

There is also a broader program question that rarely gets enough attention. Technology is one part of a functioning security operation. The procedures guiding how staff respond to alerts, the training that keeps those procedures consistent across shifts, and the documentation that allows a program to improve over time are equally determinative of outcomes. Facilities that invest in the equipment and treat everything else as secondary tend to see effectiveness degrade faster than they expect.

The screening landscape is changing because it has to. Legislation in Texas, Georgia, California, and other states is creating formal requirements where informal best practices used to be sufficient. The facilities that are navigating this well are the ones asking harder questions about what their technology actually does under operational conditions and being honest about the gap between demonstration performance and daily reality.

That gap is where the real work is.

The opinions expressed in this article are those of Peter Evans, CEO of Xtract One Technologies. The Security Guys Insights are submitted content. The views expressed in this column are that of the author and don’t necessarily reflect the views of Security Guys News.