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Pioneers the first systematic use of fingerprints in the United States
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R. Fischer furrows the red part of human lips which formed a basis for cheiloscopy
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Georg Popp uses geological evidence in a case for the first time
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Roosevelt establishes the FBI
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JJ Thomson builds the first mass spectrometer known as the hyperbola spectrograph
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pictureLocard came up with his own principal.
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Watson and Crick made model of DNA
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Fiddes and Patten write a paper on how someone can determine time from death based on cooling.
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R.R. Race first describes the Kell blood group system
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