Stadium surveillance and large crowd monitoring have become increasingly important security applications that are now employing remote sensing technologies. Low false alarm rates and high sensitivity requirements present challenges that, in the past, have been difficult to meet. Bruker’s SIGIS 2 and HI 90 both permit video images with detected chemical maps overlaid onto the video image in real time. High profile events including FIFA World Cup, G8 Summits, UEFA Europe have all been successfully monitored using the SIGIS 2 as part of the security, safety and emergency response solutions. Highly sensitive national security site surveys routinely employ the HI 90 as part of the central monitoring systems.