CRJS478 IP4

Apr 24th, 2015
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So far in this course, your study has been concentrated on the origin, developmental stages, and many uses of DNA to solve crimes. You have studied how various body fluids such as blood, saliva, and semen are tested, as well as identified the importance of mtDNA and nuclear DNA in DNA profiling. Below are several case studies that were solved using the procedures and analyses studied in class, and the application of the information obtained was used to solve the criminal investigation. Choose only 1 of the cases listed below and explain how the physical evidence recovered from the crime scene was tested and analyzed to solve the crime. Case Study 1 A man and his wife were on vacation in Paris. On the way back to the hotel, they were approached by two men with weapons who demanded their jewelry. A physical interaction occurred in which the robbers violently wrestled the man to the ground and removed his watch and rings while his wife tried to run away. The man and his wife were shot and k

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CRJS478 IP4NameClassDateProfessorDNA Case Study In case study two DNA discovered in an old rape case linked a criminal suspect to the crime. After 10 years of being free, a man was convicted of a rape after DNA evidence was developed. The female victim was not able to make identification of her rapists so DNA analysis was conducted in the case. The criminal suspect was a neighbor of the victim and lived only a few houses away. This man was considered a family friend; however, after the rape incident occurred, the suspects abruptly moved to another state. The suspect's sudden move after the rape makes him look suspicious. DNA profiling refers to the biological profile that can be developed through the analysis of biological material. DNA fingerprinting first emerged in 1985 allowing forensic analyst to create individual criminal profiles. Originally large amounts of blood or biological material were needed to conduct testing. Modern-day DNA profiling, called STR analysis, is a very sensitive technique which only needs a few skin cells, a hair root or a tiny amount of blood or saliva (DOJ, 2011). DNA profiling is the pattern created by the biological material contained in the DNA molecules. This pattern is then matched to a person. The DNA profile has become one of the most important pieces of physical evidence in the criminal investigation. DNA has changed how police investigate crimes where biological evidence has been left behind poi

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