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Archimedes invented a method for determining a volumes object with an irregular shape by using buoyancy.
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the first use of this was written in the book Xi Yuan Lu (the corronors handbook) by Song Ci and his method involved using diffrent murder weapons on animal carcases to determine what weapon was used. the book also has methods of separating strangulation from drowning for the simple fact that if a victim had water in their lungs their death was ruled an accidental drowning.
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Sir William Herschel was the first to advocate the usage of fingerprinting to identify criminal suspects.
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First uses of a identification system based on physical measurements and human classification.
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DNA fingerprinting was first used and discovered by Sir Alec Jefferys who realized that variation in the genetic code that could be used to identify one individual from another.
