How does the use of metal detectors help in facility access control?

The use of metal detectors in facility access control is primarily aimed at enhancing security by detecting unauthorized items. When individuals pass through metal detectors, the equipment identifies metallic objects that could potentially pose a security threat, such as weapons or contraband. This capability helps prevent these items from entering secure areas, thus maintaining a safer environment for personnel and the integrity of sensitive operations and information within the facility.

Utilizing metal detectors is a proactive measure that supports overall security protocols. It acts as a deterrent, as individuals are aware that such measures are in place, which may discourage attempts to carry prohibited items into the facility. The efficiency and effectiveness of metal detectors make them a crucial component in access control strategies, ensuring that only authorized and safe items enter a secure location.

The other options do not directly align with the primary function of metal detectors. Training personnel is important for overall security but is not the role of metal detectors. Monitoring employee productivity does not relate to security measures. Performing identity verification is typically achieved through other means, such as ID checks or biometric scanners, rather than through metal detection.