-
A Chinese author of the book "Hsi Duan Yu" recorded the different effects of drowning and strangulation on the body. This marked the first time that a crime was solved by applying medical knowledge.
-
Valentin Ross discovered a way to find arsenic in the stomach of corpses during autopsies.
-
Mathiew Orfila developed tests to find blood for forensic tests and also was the first to use a microscope to identify blood and semen in stains found in crime scenes.
-
Henry Faulds and William James Herschel discover that each person's fingerprints are unique and could be used as a way to identify people.
-
Alexandre Lacassagne found that the barrels of guns are all unique and tried to individualize bullets to the specific gun barrel.
-
Theodore Roosevelt established the Federal Bureau of Investigation during his presidency
-
Victor Balthazard and Marcelle Lambert conducted a study using animal hair to show how hair follicles are different on each organism. After this study, hair was soon used in forensic cases.
-
John Larson invented the first lie detector test to be used in police investigation.
-
DNA was used as evidence in a case for the first time to convict a man of murdering two girls. Alec Jeffreys used his DNA profiling test to do so.
-
Japanese researchers developed a machine that can match a dental x ray to dental records in 4 seconds or less.
