"Dr. Edmond Locard (13 December 1877 – 4 April 1966)[1] was a French criminologist, the 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." - (en.wikipedia.org 29.10.2019)
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