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Dna Testing Essay

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DNA testing was a major milestone for the judicial system and the investigators. DNA testing involves a sample collection from the crime scene and compared to the defendant in question. If any type of similarities is present, then the defendant would be arrested and questioned. The milestone happened in the late 1980s when the federal government took charge of establishing a combined DNA index system that covered both the local and the state systems in the profiling of criminals (Lazer, 2004). The first use of DNA testing was in 1986 for a rape murder conviction. The crime occurred in the English Midlands. The police in England required the help of Alec Jeffery’s who was a molecular biologist. Jeffery’s has developed an interest to help out …show more content…

This is after the circuit court in Orange County, Florida convicted Tommy Lee Andrews of rape (Lazer, 2004). Like all types of testing the challenges of admissibility will always arise. The first case of challenging the admissibility of the DNA testing evidence was between The People of New York V. Castro involving a murder case (Pyrek, 2007). It was challenged on the DNA of the blood stain that was on the defendants watch had a lot of questions than answers (Ismaili, 2011). One critical analysis illustrated an information gap in the laboratory methodology used; by no means did it follow the generally scientific procedures and standards. Some supporters have suggested abandoning the methodology that was originally used in order to embrace new methods. With that suggestion it provided a loophole for the defense attorneys to challenge the reliability of the new methods. However, the court allowed the use of the DNA tests through the principle of exclusion but not inclusion citing that the process that could involve the determination of a match was complex than that of ruling out the match (Pyrek, 2007). One major milestone that the government developed was a combined DNA index

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