to heat and friction. Primary explosives are usually not used in homemade bombs‚ because of their volatile nature. 4. What is a substrate control? Why is it done? Substrate control is an uncontaminated sample of a flammable liquid. It allows Forensic scientists to compare two samples to see whether a flammable liquid was present at the time. 5. How is the evidence from a fire scene collected? What should be avoided? Evidence from a fire scene is collected by being placed in an air-tight container
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your own words 1. The best choice of a technique when blood is found at a crime scene is analyzing the blood. In the genetics laboratory the person who contributes I would say is Alec Jeffreys as he is known as the father of genetic profiling. 2. Forensic Scientists examine tiny fingerprint details. These may be loops‚dots‚ forks‚ islands. Several comparison points must be perfectly matched for two fingerprints to be considered identical 3. Edward Foster studied fingerprint analysis in the US and
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this done? Distance determination is the process of estimating the distance between where a shot was fires and its target. this is done by looking at the patterns of powder residue/ shot pattern. 4. What is the Greiss Test? The greiss test is when forensic scientists use chemicals to develop gunpowder residue patterns‚ usually around bullet holes. 5. When a bullet is retrieved‚ how is it marked for identification purposes? What should be avoided? When a bullet is retrieved it is marked with the investigators
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Literature Review and Project Proposal AS6P01 Title: DNA Profiling Techniques in Forensic Science Abstract Since 1985‚ DNA profiling in forensic science has become very important in this virtual era of technology and in the world of science that solves both major and minor crimes. Small traces of DNA are considered in all circumstances from how the DNA was collected to fully obtaining the profile in its significant form. Traces of sweat‚ blood and semen are the most common type’s evidence
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When it comes to investigating crime‚ no matter the level of severity‚ nothing is more valuable to a criminal investigator than the use and implementation of forensic science. The results of such forensic investigations can be the difference between acquittal and conviction in a court of law. The single best aid that forensic scientists use is DNA‚ which has proven to be a powerful tool in the fight against crime. DNA evidence can identify suspects‚ convict the guilty‚ and exonerate the innocent
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identification number so that it can be cross-matched against corresponding investigative reports. The evidence is bagged in clear plastic bags‚ which are sealed airtight so that no contamination can take place. Each of these bags is accompanied by a “custody chain” document; this document is to be filled out by any officer who wishes to use or view the evidence. This is necessary to reduce the loss of evidence and cross contamination by individuals who should not have contact with it. The area is photographed
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Contribution of forensic science To crime reduction Name Institution Forensic Science is the use of science and technologies for the purpose of law by providing impartial scientific evidence for use in the court of law. Forensic science is widely used in crime analysis‚ investigation and conviction. This paper will evaluate how diverse uses of Forensic Science contribute positively to crime detection and reduction rates. Body The development of Forensic Science techniques for
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5. What is the PDQ? What is it used for? The PDQ also known as the Paint Data Quarry is a database that allows some forensic labs to compare automobile paint to narrow down the paint color to the make and model of a car. Critical Thinking Questions 1. What are some of the challenges for forensic scientists in dealing with fiber evidence? Some challenges for Forensic Scientists dealing with fibers are that they have to find these tiny pieces of evidence. 2. What does it mean if a
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extract‚ amplify‚ separate‚ and analyze. 2. From the toxicology lab‚ what is vitreous humor? Why do forensic scientists use it? Vitreous humor is the clear liquid inside the eye that gives the eye its shape‚ forensic scientists use this to confirm results received from the blood or urine. 3. From the survey in the toxicology lab‚ would you be a good candidate to work in this area of forensic science? Why or why not? I do not think so‚ it was difficult for me to catch on‚ and it is not really an
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Surprisingly‚ my interest in forensics didn’t come from binge watching CSI Miami or admiring thrilling documentaries on crime and homicide. My obsession with fulfilling a career as a forensic scientist actually came from witnessing a man walk free of a crime everyone knew he committed. As the daughter and niece of several lawyers and police officers‚ I have the had plenty of opportunities to sit through numerous of criminal trials and one case in particular influenced my career decision. A man on
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