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Carried out by doctors in Alexandria
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Published by the Chinese
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To attempt to find the cause of death, a magistrate in Bolonga ordered it
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Chemist Valentin Ross developed a method of detecting arsenic in a stomach
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An English chemist named James Marsh used chemical processes to determine a cause of death from arsenic in a trial for murder
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Juan Vucetich, first officer to use fingerprints in a murder investigation and he created a system of fingerprint identification
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Karl Landsteiner found human blood grouping and Dieter Max Richter adapted the use on blood stains
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Rodolphe Archibald Reiss founded the first school of forensics science in Switzerland
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John Larson invented the prototype polygraph which was developed for use in police stations
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A sound spectrograph was discovered to be allowed to record voices. Soon in investigations and for court evidence, voiceprints (phone recordings, answering machines, and recorders) were used.