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Gunpowder or Black Powder
Gunpowder, or black powder used for centuries, is a chemical mixture used in firearms and explosives. The composition generally consists of three main components: potassium nitrate (saltpetre), charcoal, and sulfur. These components.. #forensicballistics
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Wound Ballistics: An Overview
Wound ballistics also known as Terminal Ballistics is concerned with the wounding phenomenon. It studies how a projectile creates the wound and causes the destruction of tissues by its movements on and after entering the body, its travel inside and the...
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Bullet (A Complete Overview)
A bullet is a kinetic projectile that is fired from a gun barrel as part of firearm ammunition. The phrase comes from Middle French and means "little ball."
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Ballistics Evidences
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Calvin Hooker Goddard - Father of Forensic Ballistics
Calvin Hooker Goddard was a forensic scientist, army officer, scholar, researcher, and pioneer in forensic ballistics who lived from October 30, 1891, until February 22, 1955.
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Ammunition
Ammunition in forensic ballistics refers to cartridges made up of Shells, Propellants, Primers, and Projectiles that are regularly used in weapons. #ammunition #forensicballistics #ballistics #forensicscience #forensics #forensicnotes #bullets #primers
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Dr. Calvin Goddard is often credited with establishing scientific examination of firearms evidence in the United States, much as Balthazard helped to do in Europe.
Around the turn of the 20th century, forensic firearm examination was neither systematic nor reliable, and many of the experts called to testify were self-proclaimed and questionable at best. Goddard, a retired Army physician and gun enthusiast, helped to change the situation. As a physician, he had risen to directorship of The Johns Hopkins Hospital in Baltimore, Maryland. In 1925, he joined the Bureau of Forensic Ballistics, a private organization, and worked on several famous cases. As a result of his growing reputation, Goddard was called to examine evidence of the infamous St. Valentine’s Day Massacre in Chicago in 1929. He was able to show that all of the victims had been killed by two Thompson submachine guns. Some of the jurors in that case later raised money to establish a forensic laboratory at Northwestern University in Evanston, Illinois, called the Scientific Crime Detection Laboratory. Goddard was appointed as the first director of the laboratory and stayed until 1932. The laboratory moved to Chicago and became the Chicago Police Department laboratory in 1938.
Goddard also assisted the FBI in establishing firearms analysis capability at their new lab, inaugurated in 1932. Some of the tools used in modern firearms examination were developed by Goddard and co-workers.
Spectroscopic (analresidueytical) approach to gunshot analysis for shooting distance estimation: a systematic review
The determination of the shooting distance using gunshot residue (GSR) analysis is crucial in the investigation and reconstruction of firearm-related crimes. However, the conventional chemographic method for GSR analysis is destructive and has limited....
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