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The Scene Of The Human Body

     So much evidence is found on and inside the human body that it constitutes a crime scene unto itself. After undergoing preliminary examination at the scene, a body is released into the hands of coroners or medical examiners, becoming the landscape that yet another rank of investigators will scrutinize intimately - right down to its basic
molecules, in fact.

     Here, blood plays an important role as a type of evidence. In blood, there's DNA,
which is different even in identical twins. Here is why:

Every cell in a person's body contains identical DNA. Fingerprints come only from fingers, but DNA can be
found in urine, blood, feces, saliva, some hair, shed skin cells found on toothbrush, anywhere!

DNA can survive longer than a fingerprint. While some few prints have been collected years after being made,
DNA analysis has been performed on Egyptian mummies!

DNA can indicate familial relationships. Because DNA is inherited from 2 parents, a significant number of matches
in a sample can point to a "first-degree" relative - a mother, a father, or sibling. In cases where groups are
involved in crimes, this is important evidence.

DNA evidence doesn't combine. Blood evidence at a scene frequently comes from more than one individual - either
the attacker and the attacked, or a number of victims.


 

 

 

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