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He published the treatise on the detection of poisons which could determine if somone was murdered by poison.
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Bertillonage system- identified individuals by measurements of the head and body, shape formations of ear, eyebrow, mouth and eye.
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novels contain first used of serology, ballistics, fingerprinting and document analysis in a crime scene situation which was soon encouraged in the real world
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Developed a reliable system of recording and identifying fingerprints
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published the first treatise on applying science to criminal investigation, made a forensic journal
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He opened up the first running Forensics Lab in France and is famous for "Locard's Exchange Principle" which means that every exchange between two subjects leaves a trace.
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Published the book "Questioned Documents", which was used as a reference for document examiners
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Leon Lattes devised a procedure which dried blood stains so that they could be classified by type.
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Created the comparison microscope where two specimen can be observed, used it to analyze bullets and compare bulltets
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established FBI's national fingerpring depositony and crime laboratory, fingerprint collection and national resource
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Concluded that the world famous Turin Shroud was a medieval painting using microscopy techniques.