History of CSI

By Brennanbraun
  • 2000 BCE

    Prehistoric Fingerprints

    Evidence suggests prehistoric fingerprints were taken by pressing fingers into clay or rock blocks.
  • 250 BCE

    First Lie Detectors

    Erasistratus a historical forensic scientist, created the first lie detector test when he noticed that his patients' pulse rate appeared to increase when they lied.
  • 1248

    Differentiating Suffocation

    The first documentation of medical knowledge used for solving crimes was recorded in the book "Hsi Duan Yu". It contained the process of differentiating drowning from strangulation.

  • Expansion of Forensics

    Forensic science began expanding to include technology such as body temperature to determine times of death, and the use of fingerprinting for identification of persons.

  • Technological Innovation

    Computer forensics, DNA forensics, insect forensics and enhanced biological studies are introduced to new studies.