Gunshot Alerts Still Stall on the False-Alarm Problem
Security teams hesitate to automate an emergency notification because most alarms are not real. The U.S. Department of Justice's Office of Community Oriented Policing Services has put the false-alarm share of alarm calls at 94 to 98 percent. That number sits behind the operational choice: wait for a person to confirm, and lose seconds, or push the alert and flood a guard force and a 911 center with noise. For a gunshot, those seconds are the response window.
Confirmation Happens Before the Alert
Billy Borho, director of sales at Shooter Detection Systems, said in written responses to Security Guys News that the company does not treat false-alarm filtering as a tradeoff against speed. "SDS sensors require independent confirmation across two distinct physical phenomena: acoustic muzzle blast and infrared muzzle flash. A gunshot produces both. The vast majority of environmental noise sources that generate false alerts in other systems produce one signal but not both, or produce neither in the specific combination the sensor requires. That means the sensor is not filtering after the fact. It is not running a signal through a software layer and making a judgment call about whether to alert. If both signals are not independently detected and validated, no alert is generated, regardless of how loud or impulsive the acoustic event is."
Borho said that confidence is what makes a fully automated notify viable. Teams can push to onsite staff, to 911 through the company's ResponderLink capability, or both, without a person in the middle. He pointed to an 18-month installed test of SDS Indoor by the UK National Protective Security Authority, which recorded a 0 percent false-alert rate over the test period, and to Department of Homeland Security SAFETY Act certification at the highest level. Acoustic-only systems, he said, still face the tradeoff the question describes.
The Same Tradeoff Sits Outside the Building
The tension is not limited to indoor gunfire. Jamie Mortensen, spokesperson at Spotter Global, told Security Guys News in earlier coverage of perimeter automation that speed depends on detection and on integration deep enough to act. "Rapid automated threat response depends on two things: early detection and sufficient integration to enable automated mitigation. Our radars provide threat monitoring far beyond site perimeters, our software breaks up those monitoring areas into high-, mid-, and low-level alert zones according to customer preference, and then our software allows customers to set up their system's automated responses to intrusions by particular target types into particular zones."
A low-level vehicle or person alert can trigger floodlights. A higher threat escalates the response. The shared problem is the same: an automated action that fires on one weak signal spends the guard force. A second, independent check is what makes the action usable.
The Remaining Delay Is the Handoff
Borho said the next twelve months of integration work are aimed at open interoperability, so the detection reaches the platform a team already runs. SDS recently joined ONVIF, the standard used by cameras and access control on platforms such as Genetec, Milestone and Avigilon. The company said engineering work aligned to ONVIF specifications is done, and that integration documentation and verification testing are complete across several video management systems. It also cited more than 50 certified integrations with VMS, access control, mass notification and emergency-response platforms. The written reply framed the goal as an alert that moves without a separate software stack or a custom project.
A dual-signal sensor can take the confirmation step out of the workflow. It does not, by itself, shorten the time from a valid alert to a person moving. That interval is the handoff into the system already on the desk, and into 911, and it is still where most of the operational delay sits.
