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first describe Rh blood groups.
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the first to analyze ignitable fluid. He uses a vacuum distillation apparatus.
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initiates the study voice print identification
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Developes the acid phosphatase test for semen.
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first describes the Lewis blood group system.
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first describes the Kell blood group system.
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first describe the Duffy blood group system.
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Establishes the School of Criminology
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Founder of the first Swiss criminalistics laboratory, developes the tape lift method of collecting trace evidence.
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is formed in Chicago, Illinois. The group also begins publication of the Journal of Forensic Science (JFS).
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describe the Kidd blood grouping system.
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publishes Crime Investigation, one of the first comprehensive criminalistics and crime investigation texts that encompass theory in addition to practice.
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publish landmark paper identifying the structure of DNA
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invents the Breathalyzer for field sobriety testing.
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publishes careful and detailed measurements of temperature in control cases obtained from executed prisoners. His papers are considered landmarks in determination of time since death from body cooling.
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further publishes important papers on time since death.
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ntroduce the use of H-lectin to determine positively O blood type.
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