Companies Roll Out Gunshot Detectors at the Office

Corporate executives worried about workplace shootings are quietly installing gunfire-detection systems in U.S. offices and factories. Most don’t tell employees what the sensors are, for fear of alarming them.

The rapid uptick in adoption of gunshot sensors follows a wave of workplace shootings in the past year. The latest occurred Friday when a man opened fire at an Aurora, Ill., factory following his termination, killing five co-workers and injuring five police officers. Deadly incidents in recent months include shootings at the California headquarters of YouTube, in the lobby of Fifth Third Bancorp in Cincinnati, at a Maryland newspaper and in a Florida hot-yoga studio.

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Originally developed for the battlefield, many sensors use a combination of acoustic and infrared technology to “see” the flash of a gunshot while also hearing it. The systems can be wired to alert police and instantly send texts, calls and desktop notifications to employees, flashing messages to tell workers how to respond in an emergency.

Once the sensors detect a gunshot on a floor, the devices can track a gunman—integrating with camera systems—as he moves through a building, in theory allowing police to zero in faster and neutralize the threat. One reason many companies don’t explain to employees what the devices do is that they fear somebody will try to test them out by bringing a gun to work, security experts said.

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The sensors can distinguish between a gunshot and a car backfiring, firecracker exploding or balloon popping because they listen for the specific signature sound of a muzzle blast, he said. Those who have purchased the technology say it could save lives in an emergency when seconds matter. Some privacy experts wonder just how much monitoring the sensors are doing since they essentially mike the workplace 24/7. Mr. Connors says his gunshot detectors have “zero ability to transmit any audio whatsoever out of the sensor. It’s impossible.”

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https://www.wsj.com/articles/companies-roll-out-gunshot-detectors-at-the-office-11550575801 (paid subscription)