When forensics or forensic sciences are mentioned‚ most individuals think about the crime that forensics entails. The gore‚ the blood splatter analyses‚ bullet projections‚ DNA analyses‚ death investigations‚ semen stains‚ bite marks‚ and rape kits to name a few things that involve forensic investigations‚ but those things are just a small part of a much larger picture. Forensics is extremely broad. Forensics is the application of the scientific method and biology‚ chemistry‚ computer science‚ and
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Firearms identification – Concerned mainly with determining whether a bullet or cartridge was fired by a particular weapon. It is not to be confused with ballistics - which is the study of a projectile in motion. Bullet Comparisons – The inner surface of the barrel of a gun leaves its markings on a bullet passing through it. The gun barrel is produced from a solid bar of steel that has been hollowed by drilling. The microscopic drill marks left on the barrel’s inner surface are randomly irregular
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FORENSIC SCIENCE Notes Chapter 1: Introduction Sir Bernard Spilsbury is the 1st forensic science celebrity. A legal system does the following process‚ 1. Collect evidence from experts‚ witnesses and police 2. Prosecution and defense lawyers present cases and arguments 3. Judge and Jury (abolished in some countries including Singapore) decides outcome *Innocent until proven guilty beyond reasonable doubt. Limits of Forensic Science Actus Reus: A guilty action Mens Rea: A guilty mind or intention
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States: A Reference Handbook. ABC-CLIO‚ 2006. Goold‚ Benjamin. CCTV and Policing: Public Area Surveillance and Police Practices in Britain. Cary: Oxford University Press‚ 2004. Hunt‚ V‚ A. Puglia and M. Puglia. RFID: A guide to Radio Frequency Identification. Hoboken: Wiley-Interscience‚ 2007. Jain‚ Anil. Handbook of Face Recognition. New York: Springer-Verlag New York‚ LLC‚ 2004. Kobilinsky‚ Liotti‚ Oeser-Sweat. DNA: Forensic and Legal Applications. Wiley‚ 2004. Kruegle‚ Herman. CCTV Surveillance
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Why are gun barrels rifled? Background to rifling Rifling consists of lands and grooves in the inside of a barrel‚ the lands are the part of the barrel which is not cut away while the grooves are the part of the barrel which is cut away. Lancaster oval bore‚ eight groove rifling and polygonal rifling are only a few example of rifling forms. Lancaster oval bore rifles have a smooth barrel interior. Unlike Lancaster oval bore rifles‚ grooved rifles have grooves which are engraved into the interior
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recreate their protection. The first soft body armor was made in Japan‚ and produced from silk. This was too expensive and not strong enough to sustain against newly made bullets and firearms‚ so they kept looking for a better solution. After the silk vests came the flak jacket. The flak jacket was made out of ballistic nylon and mostly focused on protection
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Many scientific‚ military‚ medical and commercial laser applications have been developed since the invention of the laser in the 1958. The coherency‚ high monochromaticity‚ and ability to reach extremely high powers are all properties which allow for these specialized applications. Scientific In science‚ lasers are used in many ways‚ including: A wide variety of interferometric techniques Raman spectroscopy Laser induced breakdown spectroscopy Atmospheric remote sensing Investigating nonlinear
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so‚ it was difficult for me to catch on‚ and it is not really an area of interest to me. 4. From the firearm analysis‚ what is a rifling number? How is it determined? A rifling number is the number of lands or grooves in a rifled barrel‚ the number can be determined by counting the number of impressions on the bullet. 5. In the firearm case‚ what type of gun fired the bullet? In the firearm case‚ a Taurus fired the bullet. 6. What percentages of deaths in the medical examiner’s office are
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JUS 485 Midterm Exam Answer the following questions‚ which are based upon the first four modules of the course. 1. Explain why it is that evidence gained through the forensic science process is almost always considered to be circumstantial evidence. The most important fact that makes forensic evidence circumstantial is because science cannot be clearly defined by law. The legal system have created standards and written legal rules regarding the admissibility of forensic evidence. When forensic
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Lyon’s Institute of Criminalistics. He is also known for advancing the science of fingerprints. In 1910 he was authorized to start a small forensic laboratory in the Palais de Justice which he directed until 1951.While there he worked on criminal identification methods including poroscopy- the microscopic examination of fingerprints; analyses of body fluids‚ hair and skin; and graphometry or handwriting analysis. He is the man responsible for coming up with the theory that when two objects come in contact
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