3rd Century China
Carl W. Scheele was a Swedish chemist who devised a test for detecting Arsenic in corpses (the inheritance powder).
Mathieu Orfilla published an article on detecting poisons and its effects.
Polarizing microscope invented.
Photographs began used in crime scenes
Frenchman Alphonse Bertillon introduced this system of Anthropometry which was a system for identifying people by physical appearance and was considered the most accurate method of personal identification for nearly 2 decades.
Influential character created by Sir Arthur Conan Doyle, this led to increased interest in forensic sciences by audiences.
Discovered by Karl Landstein
Case of misidentification where 2 men had nearly identical Bertillon's measurements, led to the end of Anthropometry.
Discovered by Frenchman Edmond Locard which introduces cross-transfers and secondary transfers left on a crime scene to be used as means of evidence.
The Los Angeles Police Department crime lab was the first crime lab in the U.S.