crjs470_db3

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One of the crimes that may be assigned to you as a crime scene investigator is one that involves a sexual assault. It is very important that when you are recovering evidence from a sex crime scene, any evidence that is recovered for DNA analysis is recovered, packaged, and stored in a specific manner so that the evidence is not destroyed or made unusable in the crime lab. For example, there may be semen and hair recovered from the scene that must be preserved for testing.
• How would you specifically recover hair and semen from bedding and clothing left at the scene, package it, and then store it in the lab prior to running tests on the items? (40%)
• Besides DNA tests, what other types of tests are available for hair recovered from a crime scene? (20%)
• What databases are available for DNA evidence that might be recovered from a sex crimes scene? (20%)

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CRJS470-DB3NameClassDateProfessorCRJS470-DB3Sexual assault is a crime when the criminal offender forces sexual activity onto an unwillingvictim. In this type of crime there are usually critical bodily fluids such as semen, sweat, hair andblood left on the victims body and clothes as well as on the bedding or in the area where thevictim was attacked. When collecting evidence it is essential that any evidence that is located atthe scene or on the victim is carefully collected and preserved in order to be later used in a courtof law to prove the guilt of the criminal offender.When there is a sexual assault that involves a live witness it is important to get informationform the victim in order to collect and preserve relevant evidence as well as the carefullyexamine the scene to identify potential evidence.(Schiro, 2010). When recovering evidence frombedding or clothing there are specific forensic procedures that need to be followed. Whenrecovering semen from bedding or clothing the forensic investigator will need to collect theevidence and place the entire thing in a dry paper bag before carefully labeling and transportingto the lab. Visible hair would need to b
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