History of 4N6

Events

Earliest record of forensic science

201 AD - 300 AD

3rd Century China

Arsenic Tests

1775

Carl W. Scheele was a Swedish chemist who devised a test for detecting Arsenic in corpses (the inheritance powder).

" Father of Forensic Toxicology"

1814

Mathieu Orfilla published an article on detecting poisons and its effects.

Microscopes

1828

Polarizing microscope invented.

1st use of toxicological evidence in criminal trial

1839

Photographs

1850 - 1860

Photographs began used in crime scenes

1st presumptive test for blood

1863

Bertillon's System

1879 - 1903

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.

Sherlock Holmes

1887 - 1893

Influential character created by Sir Arthur Conan Doyle, this led to increased interest in forensic sciences by audiences.

ABO blood typing

1901

Discovered by Karl Landstein

Will West Case

1903

Case of misidentification where 2 men had nearly identical Bertillon's measurements, led to the end of Anthropometry.

Locard's Exchange Principle

1913

Discovered by Frenchman Edmond Locard which introduces cross-transfers and secondary transfers left on a crime scene to be used as means of evidence.

First crime lab in U.S

1923

The Los Angeles Police Department crime lab was the first crime lab in the U.S.