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James Marsh used the first to discovery arsenic in the human body
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San Francisco was the first city to use photo identification to keep track of criminals
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This allowed crime labs to identify people by matching hair follicles.
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This allow the prison to trace fingerprints of criminals.
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With the creation of the FBI, forensic scientists were now able to work to solve crimes of murder, etc.
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The creation of the first crime allow forensic science to be performed to solve crimes
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Discovering DNA allows forensic scientists to identify the genetics of a person
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This allowed voice analysis to be useful in solving crimes.
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This allowed the FBI to identify people for crimes by their fingerprints
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This process allowed people to be identified by their DNA