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Is Forensic Ballistics Evidence Reliable? For many decades, ballistics has been held as an indisputable science in courtrooms across the United States. However, defense attorneys have been challenging the reliability of ballistics for nearly as long as judges have been accepting it as evidence in their courtrooms.

In technical terms, the two basic tools for ballistic investigations are the comparison microscope, which allows comparison and effective analysis of the evidence, and a software program that allows for the ballistic comparison using a system which stores the data and image base of firearms for further comparison in

The report included the test firing of more than 2,000 rounds from 790 pistols. When cartridges from the same manufacturer were test-fired and compared, computer matching failed 38 percent of the time. With cartridges from different manufacturers, computer matching failed 62 percent of the time.

When a bullet is fired from a gun, the gun leaves microscopic marks on the bullet and cartridge case. These marks are like ballistic fingerprints.The examiner will then assess how similar the two sets of marks are and determine if the bullets are likely to have been fired from the same gun or different guns.

Bullet trajectory analysisBy tracing the path or the trajectory of the bullet, one can determine the position of the victim's body at the time of a shooting or can determine the angle of impact. Bullet trajectory analysis can also assist in determining the position of the shooter and the distance from a target.

A comparison microscope is used for the examination of fired bullets, bullet fragments and cartridge/shotshell cases.

Annual salaries for ballistics analysts and other forensic science technicians averaged $59,150 per year in 2019, according to BLS salary data. Overall, salaries ranged from $35,620 for the lowest-paid 10 percent to $97,350 for the highest-paid 10 percent.