VST_Man 1 Posted July 12, 2005 Just read a news paper article out of Wisconsin that was all about a new camera technology (SENTRI, Smart Sensor Enabled Neutral Threat and Identification) being used in large metro areas. It's basically a camera that uses 4 microphones to triangulate a (gun shot) sound and then the camera positions itself in that direction for recording AND calls 911. Chicago's murder rate has dropped to a 4 decade low. Company called Safety Dynamics. Share this post Link to post Share on other sites