A passive biometric surveillance system capable of controlling access to a secure area or holding area for further interrogation or detainment. The system or apparatus passively measures a subject's various physiological parameters and compares a produced digital figure or facial image to a database. If the image corresponds to a notable individual, the subject is allowed access only to the holding area for further interrogation. If the image does not correspond to a notable individual, the system or apparatus provides an audio and/or video object or stimulus to the subject. The system or apparatus passively measures the subject's post-stimulus physiological parameters and compares these parameters with a predetermined threshold(s). Depending upon the outcome of this comparison, the subject is either allowed to pass into the secure area or is allowed only into the holding area for further interrogation.