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Theories state that before 700 B.C the Chinese had recorded thumb prints upon clay in order to have a form of classification system.
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During 250 B.C an famous Greek Physician, Erasistratus, had made an lie detector test as he determened the persons heart began to beat faster when they were lieing.
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Hsi Duan Yu was a book written to describe a process of comparing drowning to strangulation, and to see the differnce in between them.
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This was also known as the seats, and causes of diseases investigated by Anatomy. The writter was named Giovanni Morgagni, and he was nick named the father of anatomical pathology.
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During 1773 an Swedish Apothecary Carl Wilhelm Scheele had discovered a way to see if arsenous oxide, or straightfoward arsenic were left in dead bodies.
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Traite des Poisons was written by Mathieu Bonaventure Orfila, in which he descibes a lot about poisions within the body.
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John Augustus Larson had made the Portable polygraph machine. He was a medical student at University of California at Berkeley, and an police officer as well.
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In 1986 Sir Alec Jeffreys had descovered the first DNA profiling technique, and is still the basis in which we use. In 1987 Tommie Lee Andrews was the first person to have had been contested guilty with the use of DNA profilling.
