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Frank Lundquist, working at the Legal Medicine Unit at the University of Copenhagen, and he developed the acid phosphatase test for semen in 1945.
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By 1946 about 100 million fingerprint cards in manually made. Then came the introduction of automated fingerprint identification system.
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In Germany a guy Robert Heindl formed a police laboratory at Munich
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The first description of an antibody was published in 1946 by Mourant. Lewis. It was called the Lewis system.
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Keith Simpson launched the science of bite-mark analysis. His belive first started with a murder of a young women.When he examined bite-marks on the breast of dead woman, he said the marks were distinctive, and could be matched with dental records.
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The American Academy of Forensic Science was founded.
At this point only 6 U.S. city police departments had crime labs -
The French toxicologist Henri Griffon was the first to use Neutron Activation Analysis to detect traces of poison in hair
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James Watson , Francis Crick , and Maurice Wilkins identify DNA’s double-helical structure.
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Paul Leland Kirk published a book on Crime Investigation. It was one of the first undertandable books on criminalistics and crime investigation.
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In 1954, Professor Robert F. Borkenstein of Indiana University invented the Breathalyzer, an instrument that testing breath alcohol. There was already something like it called The Drunkometer it needed to be reset when it was moved from place to place, while on the other hand the Breathalyzer was highly portable and didnt need any resetting
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In the landmark 1954 case of Brown vs. Board of Education, several psychologists testified for both
the plaintiffs and the defendants. Later, the courts gave support to psychologists serving as mental
illness experts in the case of Jenkins vs. United States. -
At this point Forensic medicine began losing its position as the center of forensic science. But it really started in the 50's.
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Developed by Bell Laboratories in the late 1940s for military intelligence purposes olny.But Voiceprints did not start began used until 1960.A personds voice can be recorded on an instrument called the sound spectrograph. Recordings on phones, answering machines and orr tape recorders could then be used as evidence in court.Developed by Bell Laboratories in the late 1940s for military intelligence purposes
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Nuetron Activation Analysis was being tested at U.S. atomic laboratories
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An American court admitted Neutron Activation Analysis evidence for the first time.
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In 65 only seven states had or had just adopted a medical examiners system.The Scanning Electron Microscope (SEM) was perfected for ciminalistic use
