David Bourgeois English 1010 Mrs. McNeely March 9‚ 2005 Use of a rifle / Use of a shotgun All guns serve different purposes. Guns have been a part of American history for many years. Many different kinds of guns have been used for many different types of jobs. In like manner hunters have different guns for different game. Just as police use guns for law enforcement‚ hunters use guns to harvest game. The two most commonly used firearms of hunters‚ are the rifle and the shotgun. Both the rifle
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make a bullet spin as it is fired . The two types of markings that rifling produces is grooves and lands. What is a distance determination? How is this done? Distance determination is the process of estimating the distance between where a shot is fired and it’s target. This is done by examination‚testing and comparisons of residues. What is the Greiss Test? The Greiss test is a test that uses chemicals to develop gunpowder residue patterns‚ particularly around bullet holes. When a bullet is retrieved
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to solve crimes. One of the pillars of forensic investigation is the science of ballistics. Wikipedia defines ballistics as the science of mechanics that deals with the flight‚ behavior and effects of projectiles (Wikipedia). Understanding how the bullet with react when striking various surfaces is crucial to any investigator. With 68% of all U.S. homicides that were committed in 2011 with firearms‚ it is evident ballistics is an important way to solve these crimes (Crime in the US). To understand
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determined by rotating the bullet and counting the number of rifling impressions present on the surface. 5. In the firearm case‚ what type of gun fired the bullet? a) The caliber of the bullet is 9 millimeters. The bullet also has conventional rifling marks because the marks are rough and easy to see. The bullet itself has a rifling number of six. The two Taurus guns fit the category for which fired the bullet. It was the second Taurus that was the actual gun that fired the bullet. 6. What percentage
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provided. 8. Professional Experience There are boxes here to overwrite your previous employer’s company name‚ the name of the country which will appear in italics‚ a brief description of what the company did‚ your job title and a few bullet points about what you did.
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integrated ballistic identification system. This was created by the FBI and ATF using the original IBIN so they could have access to pictures and information of features on bullets. 2. What is rifling? What two types of markings does this produce? Rifling is the spiral grooves cut into the barrel of a gun in order to make the bullet spin when it is fired. The two types of markings the produces are grooves and lands. Grooves are low areas cut into the barrel‚ and lands are the raised areas between the
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movement‚ and effects of projectile units such as bullets‚ missiles‚ and bombs. There are many applications of ballistics within a criminal investigation. Bullets that have been fired at the scene of any crime will be examined in the hopes of discovering several pieces of information. The actual bullets can identify what type of gun the criminal used and whether or not the firearm is connected to any other crime. The amount of damage a bullet has sustained upon hitting a hard surface can help
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solving to a whole new level. With a single scan of a bullet into a ballistics database‚ the original gun fired can be identified within minutes. Once the gun is identified‚ however‚ this can give law enforcement officers the lead they will need in order to identify the suspect and further the investigation of the case. Ballistic Fingerprinting is a method that is used to identify a bullets origin of fire‚ in other words‚ what gun fired the bullet in question. “The technology behind the achievement
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Rifling is the spiral grooves cut into the barrel of a gun in order to make the bullet spin. Two types of markings that this produces is grooves and lands. 3. Distance determination is the process of estimating the distance between where a shot is fired and its target. This is often done by looking at the patterns of powder residue and the shot pattern. 4. The Greiss Test is a test to the presence of nitrate? 5. When a bullet is retrieved‚ it is marked for identification purposes by usually being marked
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Firearms and Toolmark Identification Firearms analysis is a “discipline mainly concerned with determining whether a bullet or cartridge was fired by a particular weapon”. (Saferstein) Its beginnings can be traced back over one thousand years ago to around 1040 A.D. In China‚ Tseng Kung-Liang published the first recipes for three types of gun powder‚ which were made through a mixture of sulfur‚ charcoal‚ and potassium nitrite. (Hellemans and Bunch‚ 75) These basic elements are important because
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