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Bartolomeo da Varignana performed one of the first medicolegal autopsies in the case of a suspected murder of a nobleman.
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Scientists began using body temperature to determine a person's time of death. This practice began in the late 1800's.
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Henry Faulds of Scotland publishes a paper suggesting fingerprints at the scene of a crime could identify the offender. Faulds uses fingerprints to eliminate an innocent suspect and indicate a perpetrator in a Tokyo burglary.
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Scotland police began comparing bullets to determine if a suspect's gun was the murder weapon or not. This became the first for of Ballistics testing.
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The polygraph was invented, which was invented by John Larson in 1921, developed for use in police stations.
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Japanese researchers develop a dental x-ray matching system. This system can automatically match dental x-rays in a database, and makes a positive match in less than 4 seconds
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DNA is used for the first time to solve a crime. DNA profiling is used to identify Colin Pitchfork as the murderer of two young girls in the English Midlands.