Edmond Locard

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Dr. Edmond Locard (1877-1966) was a pioneer in forensic science who became known as the Sherlock Holmes of France. He formulated the basic principle of forensic science: "Every Contact Leaves a Trace". This became known as Locard's exchange principle.

Locard studied medicine and law at Lyon, eventually becoming the assistant of Alexandre Lacassagne, a pioneer criminologist and professor of Forensic Medicine at the University of Lyon. He held this post until 1910, when he began the foundation of his criminal laboratory. He produced a monumental, seven-volume work, Traité de Criminalistique, and in 1918, developed 12 matching points for fingerprint identification. He continued with his reasearch until his death in 1966.

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