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Period: to
Some Developments In Science
A polarized microscope was made for fiber analysis. The use of photography in crime scenes and as criminal identification was starting to be used. Identifying the stage of insects on the corpse was also used to estimate how long the body had been decomposing. -
Arsenic Testing
James Marsh developed the first arsenic poisoning test. Up until this point it was untraceable so it was the best murder weapon. -
Bullet Comparison
The first bullet comparison was preformed. This was done because the bullet itself had a small flaw. It was then traced back to the mold that made the bullet. Then traced to the person who bought and then used the bullet in question. -
Finger Printing
Finger printing made its start officially in 1892. This was not incriminating until almost the 20th century until it was established that it was a 1 in 64 billion chance that someone would have the same finger prints as you.