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A victim had been killed by a sickle (a farming tool). All the rice field workers were told to lay down their sickles and a hoard of flies were attracted to one because they could sense the blood.
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Orifla studied decomposing bodies, asphyxiation, and exhumation. He published Traite Des Poisons expanding his knowledge on forensic toxicology.
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Herschel documented his fingerprints to prove that the prints don't change overtime. Working as an Indian Civil Service officer, he decided that it was best for thumbprints to be put on contracts.
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Working as a minor clerk at a Paris police station, he created a system used to identify people with 11 bodily measurements plus hair color, skin color, and eye color.
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Faulds was sure that a man accused of breaking into his hospital was innocent. He compared the fingerprints left at the crime scene to the suspect's and discovered that they did not match.
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His first Sherlock Holmes Story was published. The novels popularized crime-detection methods.
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Galton conducted the first definitive study of fingerprints and classified them. He published "Fingerprints."
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Gross wrote the first paper about scientific principles and its relation to criminal investigation. He published "Criminal Investigation"
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He discovered ABO blood groups and won a Nobel prize.
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In a crime lab, he used Gross' principles. He later on founded the Institute of Criminalistics at the University of Lyons.
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Published "Questioned Documents." He developed fundamental principles of document examination.
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He developed an antibody test that classified A, AB, B, and O blood type from dried blood.
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Established the first crime lab in the US in Los Angeles.
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Goddard developed a comparison microscope.It was originally used to compare bullets.
