We present a system that exploits advanced Mixed and Virtual Reality technologies to create a surveillance and security system that could be also extended to define emergency prevention plans in crowdy environments. Surveillance cameras are carried by a mini Blimp which is tele-operated using an innovative Virtual Reality interface with haptic feedback. An interactive control room (CAVE) receives multiple video streams from airborne and fixed cameras. Eye tracking technology allows for turning the user’s gaze into the main interaction mechanism; the user in charge can examine, zoom and select specific views by looking at them. Video streams selected at the control room can be redirected to agents equipped with a PDA. On-field agents can examine the video sent by the control center and locate the actual position of the airborne cameras in aGPS-driven map. The aerial video would be augmented with real-time 3D crowd to create more realist risk and emergency prevention plans. The prototype we present shows the added value of integrating AR/VR technologies into a complex application and opens up several research directions in the areas of tele-operation, Multimodal Interfaces, simulation, risk and emergency prevention plans, etc.