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Time of Death by Body Temperature
Scientists began practicing the use of body temperature to time the death of a person. -
Fingerprint Identity
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Discovery of DNA
DNA was discovered by James Watson after years of observation and trial. -
Balistics Testing
This began the use of bullets being compared to murder weapons to find the correct suspects. -
Use of Fingerprints
Fingerprints were used as a way to match someone to a crime. -
Blood Groups
The doctor Karl Landsteiner discovered different blood groups, making blood transfusions safer and more of an option.