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tonkyn_lecture_team_5 - Dr Tonkyn The Real CSI What is a...

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Dr. Tonkyn The Real CSI 04/02/2007 What is a Forensic Scientist? -Holds a BA of Science usually in Chemistry, Biology, or Forensic Science -There are city, county, state, federal and private labs where they can work at. -Is a criminalist who answers the who, what, where and when. -They identify and collect evidence at crime scenes. -Perform scientific analysis- anything that can be measured and compared to a standard. -Considered expert witnesses in court and are allowed to provide opinion and hearsay evidence. Forensic vs. Clinical Analysis -Forensics deals a lot with the unknown. Samples can include anything, are usually from an unknown history, uncontrollable environmental effects, can be from multiple individuals, usually sample size is very limited and results can and most likely will be present in court. -Clinical analysis, unlike forensics, deals with known samples, known history, usually not degraded sample due to a controlled environment, from a single individual, enough of sample for multiple analysis’. -The similarities was that they can both get speciems from other species, can be contaminated and can result in life or death situation. DNA Basics- Deoxyribonucleic Acid - No two people have the same DNA, exceptions are Identical twins. It is the 0.1% that is variable between individuals.
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