Using active millimeter-wave technology, the flat panel reflect array directs mm-wave energy to and from a person to detect concealed objects. Acting as an electronically configurable lens, the panel scans a large cubic volume. This ensures that the person being scanned always remains in focus. The open plan design offers a positive user experience and facilitates ease of communication between the operator and the person being screened. The operator interface provides instant feedback indicating the location of concealed objects. The output format prompts a directed search for fast alarm resolution. Automated checking of the operational process is integrated into the system thus ensuring that the correct screening procedures are implemented.