jan 1, 1910 - Establishment of the First Forensic Laboratory

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Edmond Locard, often called the "Sherlock Holmes of Lyon," established the first police crime laboratory in Lyon, France. Locard formulated the "Locard Exchange Principle," which states that "every contact leaves a trace." This principle is foundational to forensic science, emphasizing that perpetrators will inevitably bring something into a crime scene and take something away, leaving trace evidence behind.

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