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first discovers human blood groups that adapts the technique to type stains.
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Pioneers the first systematic use of fingerprints in the United States by the New York Civil Service Commission.
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Reiss Sets up one of the first academic curricula in forensic science.
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Roosevelt established the Federal Bureau of Investigation.
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Victor publishes the first article on individualizing bullet markings.
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J.J. builds the first mass spectrometer known as the hyperbola spectrograph.
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First uses a vacuum apparatus to collect trace evidence.
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First suggests 12 matching points as a positive fingerprint identification.
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Pioneers the use of botanical identification in forensic work.
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Is the first to catalog manufacturing data about weapons.
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Enunciates the Locard's Exchange Principle.
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One of the first American criminalists, pioneered striation analysis in the mark comparison, including an attempt at statistical validation. In 1930 he published The identification of knives, tools and instruments, a positive science, in The American Journal of Police Science.
