PPT-Firearms & Tool Marks

Forensic Science 2 Copyright and Terms of Service Copyright Texas Education Agency 2011 These materials are copyrighted and trademarked as the property of the Texas Education Agency TEA and may not be reproduced without the express written permission of TEA except under the following conditions. Tim Counce. Forensic Scientist IV. Purpose: To provide members of the legal community the scientific underpinnings of forensic firearm and toolmark analysis, its compliance with applicable scientific criteria for admission under Daubert and Frye standards, and associated published research substantiating the discipline. Mankind has been fascinated by the idea of . launching a projectile. at animals for thousands of years.. Gunpowder. was first used in . China. over 1000 years ago, but was primarily used in . firecrackers. A Statistical Study and . Potential Software Tools For Practitioners . Carol . Gambino. , Patrick McLaughlin, Loretta . Kuo. , . Peter . Diaczuk. , Gerard . Petillo. , . Frani. . Kammerman. , Lauren . Your Young Child. . Protection at Home and Away. • There are approximately 300 million privately-owned firearms in the United States. • 40 to 45% of American households have firearms. • Even if there are no guns in your home, the chances are that you know someone who has them.. , Tool Marks, and Other Impressions. Bullet and Cartridge Comparisons. Gun Barrel-1. Rifling-impressing of the inner surface of a gun barrel with spiral grooves.. Imparts spin to projectile to keep it on course. Mr. Ross Brown. Brooklyn School for Law and Technology. How can we determine the firearm from which a bullet was shot?. 18 April 2016. Do now: What makes it difficult to determine which firearm shot a specific bullet?. Forensic Science . 4/28/15. Pd. 3 . If you did not take the quiz yesterday, grab two yellow folders, drop off your phone, and move to one of the back tables, around the wall.. During the drill, Ms. Bloedorn will bring you . Chapter 15. Introduction. Structural variations and irregularities caused by scratches, nicks, breaks, and wear may permit the criminalist to relate: . A bullet to a gun. A scratch or abrasion mark to a single tool. September 29. , 2014. How can footwear evidence be used to solve crimes?. Identification of a suspect (more on this later!). Number of . perpetrators. Location of prints may help reconstruct crime. Confirm / rebut alibis or witness statements. “ A well regulated militia, being necessary to the security of a free state, the right of the people to keep and bear arms, shall not be infringed.”. 2. nd. Amendment to the US Constitution. “. The Chinese invented gunpowder over a thousand years . ago. . using KNO. 3. , charcoal and sulfur.. Muzzle-loading matchlocks used wicks to ignite the gunpowder. . The cartridge and breech loading followed. . Chapters 15 & 16. PVMHS. , 2015. Student objectives:. Distinguish between patent, latent, and plastic impressions . Describe how to make foot, shoe, and tire impressions . Use track width and wheel base information to identify vehicles . The Firearms market is quite popular in Canada. Millions of adults are having licensed firearms and they have to go with the restriction of the laws.To get a firearm licence in Canada, you have to go through FIREARMS SAFETY COURSE and pass it.The Firearms licence course ontario is vital to complete each stage to stay within the law. : when tool is pressed into soft material. Show outline of tool. Sliding. : when tool is slides across the surface. Has a pattern of parallel striations. Class characteristics are hard to determine because many tools make similar sliding marks .