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Period: 700 BCE to 44 BCE
The Chinese began to record thumbprints on clay sculptures
There was no official classification in place at this time. -
250 BCE
The invention of the lie detector test
Erasistratus created this test when he noticed that his patient's pulse rate increased when they lied. -
44 BCE
The examination of Julius Ceaser's body
When a Roman doctor examined Julius Ceaser's body, he discovered that out of all of his 23 stab wounds, only one was fatal. -
1100
Blood-covered palm prints
Quintilian, an attorney proved that blood-covered palm prints were left at a crime scene to frame a blind man for the murder of his mother. -
1248
Hsi Duan Yu
"Hsi Duan Yu" is a book that included the first documentation of medical knowledge aimed at solving crimes. It detailed the process of distinguishing drowning from being strangled. -
Traite Des Poisons
"Trait Des Poisons" was published and it was focused on the mant elements of fingerprint detail and chemical elements such as poison. -
Bullet Comparisons
Investigators at Scotland Yard began conducting comparisons between bullets and could conduct tissue tests that identified arsenic as a means of murder. -
Body Temperature
Body temperature was starting to be used to tell the time of death. -
Period: to
Modern crime scene advancement
Modern forensics built upon all of these inventions and tests by including computer forensics, DNA forensics, entomological forensics, and enhanced biological studies. -
The portable polygraph machine
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Gunshot residue
Investigators and forensic scientists could now do tests to detect if gunshot residue is on the patient. -
Voiceprint identification
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Acid phosphate tests
Acid phosphate tests were used to detect semen and early DNA analysis.
