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  Chinese used fingerprints to establish identity of documents and clay sculptures
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  Roman courts determined that bloody palm prints were used to frame a man in his brother’s murder
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  King Richard of England introduced the idea of the coroner to investigate questionable death
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  A murder in China is solved when flies were attracted to invisible blood residue on a sword of a man in the community
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  Fidelus was first to practice forensic medicine in Italy
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  Anton Van Leeuwenhoek constructed the first high-powered microscope
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  Paul Revere identified the body of General Joseph Warren based on the false teeth he had made for him
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  John Toms convicted of murder on basis of torn edge of wad of paper in pistol matching a piece of paper in his pocket
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  Gustav Kirchhoff and Robert Bunsen developed the science of spectroscopy.
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  Crime scene photography developed
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  Alphonse Bertillon developed a system to identify people using particular body measurements
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  Edward Henry developed first classification system for fingerprint identification
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  Karl Landsteiner identified human blood groups
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  Edmond Locard formulated his famous principle, “Every contact leaves a trace.”
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  Francis Aston developed the mass spectrometer.
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  James Watson and Francis Crick discover the DNA double helix
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  AFIS developed by FBI, fully automated in 1996
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  Jeffreys developed and used first DNA tests to be applied to a criminal case