Investigators used an automated ballistics identification system to determine that the gun used had also been fired several months previously outside a nearby bar. For example, on July 10, 2007, a gunman shot and killed three people in their apartment in North Charleston, South Carolina.
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With this information, investigators can create important leads that help to crack cases, including identifying the original purchaser of the firearm, or linking a firearm to multiple crimes that may involve the same suspect. 5 By linking the cartridge cases recovered at crime scenes to the gun that fired them, ballistic identification and microstamping technologies make it easier to solve gun crimes. 4 Both ballistic identification and microstamping systems help law enforcement officials investigate gun crimes because they can accurately identify the gun from which a cartridge case was fired. Not surprisingly, cartridge cases are much more likely to be recovered at the scene of a shooting than the gun itself. One reason gun crimes are so difficult to solve is that very little evidence is usually left behind at the scene, with the exception of spent cartridge cases that are expelled when a gun is fired. Ballistic imaging and microstamping technologies have the potential to reduce gun violence by improving the solve rate of gun-related crimes. 3 In many cities like Chicago, there is much room for improvement. 2 By way of comparison, the Murder Accountability Project estimates that the national homicide clearance rate in 2015 was 61.5%. 1 It’s no coincidence that in a city like Chicago, where the homicide solve rate is as low as 21%, gun violence rates are astronomical. As Jill Leovy vividly depicts in her 2015 book, Ghettoside, this sort of vigilante justice exacerbates the cycle of retaliatory violence. Where gun crimes, especially murder, do not result in criminal charges, people are more prone to take the law into their own hands-often with tragic and deadly results. Too many gun crimes go unsolved, a fact that contributes to higher rates of gun violence in the United States. By connecting evidence found at the scene of a shooting, like a spent ammunition cartridge, to the gun that was used-and by extension the original purchaser-law enforcement can better investigate gun crimes and hold violent offenders accountable. Marking fired cartridges with identifying information through microstamping and ballistics identification provides an avenue for law enforcement to pursue those who commit gun crimes.
Microstamping and ballistics identification can reduce gun violence by improving the solve rate of gun-related crimes.
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