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Greek physician, Erasistratus, was the first one to create a lie detector test.
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The Chinese began record thumbprints by using clay sculptures.
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Roman attorney Quintilian used blood palm prints on a door handle to find the murderer of his mother.
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Investigators at Scotland Yard began to conduct bullet comparisons.
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Forensic scientists began using body temperature to figure out the time of death.
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investigators began using systematic fingerprinting.
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Scientists began using psychological profiling.
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They used foot and finger prints. They used a small amount of psychological profiling. They emphasized the use of medicine and diagnosis as well.
