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First test used in in toxicology. Important in the advancement of toxicology. Helped determine if arsenic was in body. Used as evidence to convict many people of poisoning. -
Discovered fingerprint analysis by determining fingerprints could be used to identify people. Also advocated for the use of fingerprint analysis in forensics. -
Soil was used in a case in order to convict a man by determining the soil near the crime scene was found on his shoes. -
Expert in document forgery. Discovered no two people can have the same handwriting characteristics. Wrote a book called Questioned Documents explaining his findings. -
John A Larson a police and psychologist determined a way to monitor heart rate, blood pressure, and breathing in order to tell if someone was lying. -
LA a police chief established the first lab in forensics. -
Invented to remove harmful gas from the air before being released. Used in forensics when dealing with chemical evidence. -
Contributed to the advancements in ballistics. Determined by examining bullets what guns it belonged to. Helped determine in a massacre that the bullets used were not police bullets. -
First time comparison microscope was used in forensics to determine different markings on bullets. Helped ballistics and forensics. -
The FBI opened their own crime lab which became the best crime lab in the world. -
Spectrograph was discovered to record voices. Voice evidence began to be used as evidence in court. -
29 kids in Atlanta area were strangled. Police at the dump site witnessed a car driving away they arrested the man however they didn't witness him drop a body. They used forensic evidence in order to convict him of the crime. They matched fibers from victims to 30 different fibers found in his house including his dog.