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Sir Edward Richard HENRY is appointed head of Scotland Yard and forces the adoption of fingerprint identification to replace anthropometry.
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Oskar and Rudolf ADLER develop a presumptive test for blood based on benzidine, a new chemical developed
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The New York State Prison system begins the first systematic use of fingerprints in United States for criminal identification.
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Georg POPP uses geologic evidence in a criminal case for the first time
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Oskar and Rudolf ADLER develop a presumptive test for blood based on benzidine, a new chemical developed
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Oskar and Rudolf ADLER develop a presumptive test for blood based on benzidine, a new chemical developed by Merk.
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Georg POPP firmly established forensic geology with the Margarethe FILBERT case.
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Edmund LOCARD, successor to LACASSAGNE as professor of forensic medicine at the University of Lyons, France, establishes the first police crime laboratory
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Victor BALTHAZARD, professor of forensic medicine at the Sorbonne, publishes the first article on individualizing bullet markings.
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J.J. THOMSON builds the first mass spectrometer known as the hyperbola spectrograph.
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Charles E. WAITE is the first to catalog manufacturing data about weapons.
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August VOLLMER, as chief of police in Los Angeles, California, implements the first U.S. police crime laboratory.
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LANDSTEINER and LEVINE first detect the M, N, and P blood factors leading to development of the MNSs and P typing systems.
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Calvin GODDARD's work on the St. Valentine’s day massacre leads to the founding of the Scientific Crime Detection Laboratory on the campus of Northwestern University, Evanston, Illinois.
