National Geographic

Shooter DetectionSystems in Boston,Massachusetts,has invented awall-mounteddevice (above)GHVLJQHGWRƃQGan active shooterinside a building.The system usesacoustic softwareto identify thesound of gunshotsand infraredPX]]OHƄDVKdetectors to verifythe shots and thenautomaticallyprovides securityRƅFHUVZLWKDPDSthat shows theirprecise location.ROBERT CLARKSHOOTERSWATCHING