FREE e-Newsletter
Important News - Hot Topics
Get them Now!
Brian Cain

Brian Cain

Brian Cain is a sergeant with the Holly Springs (Ga.) Police Department, and is known as the "Millennial cop" on Twitter. He has been in law enforcement since 2000. He hosts and produces a podcast for Millennials in law enforcement.



Michael Bostic

Michael Bostic

Mike Bostic, of Raytheon Corp.'s Civil Communication Solutions group, specializes in open architecture, systems integration of communications and data programs. Mike spent 34 years with the LAPD. He managed IT and facility development, as well as the SWAT Board of Inquiry, which developed new command-and-control systems.
Technology

Detecting the Origin of Gunshots

ShotSpotter auditory sensors relay instantaneous data to police agencies when gunfire erupts.

July 29, 2010  |  by - Also by this author


Photo via Flickr.com (thisisrod).

The Plainfield (N.J.) Police Department is the latest agency to consider using a technological system called ShotSpotter that uses audio freqencies to pinpoint the location where shots were fired.

The system is in use by more than 50 law enforcement agencies around the country.

Agencies using ShotSpotter, according to the manufacturer, say it reduces violent crime, discourages random gunfire, aids in arrests, provides data for investigations and prosecutions, and has allowed agencies to refocus patrols in critical areas of the city at certain times.

The Plainfield (N.J.) Police Department is the latest agency to consider using a system that has been adopted in Boston, Los Angeles, Minneapolis, D.C. and Birmingham (Ala.), reports MyCentralJersey.com.

Gunshot detection is possible with the system that involves the installation of small auditory sensors—16 per square mile—in areas where gunfire is more common.

When a gun is fired, sound waves travel outward in all directions at a uniform speed, hitting the sensors at different times. Those times are then compared digitally to determine the origin of the shot with sharp accuracy.

According to the company, in 2006, 91 percent of gunshots recorded by active ShotSpotter systems were pinpointed to within 10 meters of an actual firing location. The sensors are so sensitive, they can help determine the number of shots fired, whether a shooter was moving when firing, and the caliber of weapon used.

The system reduces the frequency of gun shots essentially by increasing police response time, because shots-fired data is relayed to responding officers within seconds, according to the company.

"Faster police time means quicker arrests, shorter investigations and a smarter use of our resources in Minneapolis," according to Councilman Gary Schiff. "With five to six thousand reports of shots fired in the city each year, hopes were high that the city would see a dramatic reduction in violent crime."

In one dramatic instance in the metro D.C. area, ShotSpotter data was responsible supporting the accounts of two officers accused of an improper shooting.

Tags: ShotSpotter, Forensic Evidence


Be the first to comment on this story





POLICE Magazine does not tolerate comments that include profanity, personal attacks or antisocial behavior (such as "spamming" or "trolling"). This and other inappropriate content or material will be removed. We reserve the right to block any user who violates this, including removing all content posted by that user.
Get Your FREE Trial Issue and Win a Gift! Subscribe Today!
Yes! Please rush me my FREE TRIAL ISSUE of POLICE magazine and FREE Officer Survival Guide with tips and tactics to help me safely get out of 10 different situations.

Just fill in the form to the right and click the button to receive your FREE Trial Issue.

If POLICE does not satisfy you, just write "cancel" on the invoice and send it back. You'll pay nothing, and the FREE issue is yours to keep. If you enjoy POLICE, pay only $25 for a full one-year subscription (12 issues in all). Enjoy a savings of nearly 60% off the cover price!

Offer valid in US only. Outside U.S., click here.
It's easy! Just fill in the form below and click the red button to receive your FREE Trial Issue.
First Name:
Last Name:
Rank:
Agency:
Address:
City:
State:
  
Zip Code:
 
Country:
We respect your privacy. Please let us know if the address provided is your home, as your RANK / AGENCY will not be included on the mailing label.
E-mail Address:

Police Magazine