Abstract: An integrated passenger management system includes a check-in facility comprising a biometric sensor, an identification document check facility arranged to connect to an external database of suspect passengers, a security portal comprising at least a further biometric sensor and a millimeter wave camera, and a boarding gate comprising at least a biometric sensor, wherein a passenger is allowed to board a transport medium associated with the boarding gate if the biometric measurements taken by the biometric sensors at each stage are substantially similar, and the other security checks are passed satisfactorily. An embodiment of the invention provides for the issuance of a boarding card only after the passenger has passed through the security portal. Another embodiment provides for details relating to a first biometric measurement to be stored on a security card, that may be compared to further biometric measurements taken at the different stages of boarding.