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Izaak van Deen develops the guaiac blood test.
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Friedrich Miescher discovers DNA
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Henry Faulds presents powder dusting to expose quiescent fingerprints.
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Juan Vucetich, is the first to use fingerprints as evidence in a murder investigation.
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Hans Gross publishes Criminal Psychology.
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Karl Landsteiner discovers human blood grouping
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Victor Balthazard and Marcelle Lambert publish first the study on hair fibers.
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Victor Balthazard publishes his belief that each fired bullet carries unique marks.
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Police Chief August Vollmer establishes the first forensic laboratory in Los Angeles
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Philip Gravelle and Calvin Goddard develop the comparison microscope.
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Detection of gunshot residue by SEM/EDS is developed.
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The discovery of DNA analysis identifying anyone's unique biological code.
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The National DNA Index System (NDIS) becomes operational.
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3D reconstructions of crime scenes, traffic collisions and bullet trajectories are used to solve crimes.
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Footwear Detection
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Facial sketches used to mach photos.