Development of CSI Science

By ashleydiaz
  • 250 BCE

    Lie Detector Test

    In 250 B.C., a famous Greek physician named Erasistratus created the first lie detector test which was based off of the person's heart beating faster if they told a lie.

  • Toxicology

    In 1773, Carl Wilhelm Scheele figured out a way to find out if arsenic or arsenous oxide was left in dead bodies.

  • Traite des Poison

    Mathieu Bonaventure Orfila wrote a treatise called Traite des Poisons where he wrote about the poisons that can be found within the human body.

  • First Polygraph Machine

    In 1902, James McKenzie began the development of the first polygraph machine which was later improved.

  • DNA Profiling

    Sir Alec Jeffreys was the first to discover the DNA profiling method. This paved the way for forensic sciences.

  • Footwear Detection

    Forensic investigators could now use footprints left from footwear to find more evidence in a case.

  • Facial Recognition Sketches

    Sketches of suspects made by artists could describe how witnesses saw a person if photographs were not taken. This was now being used even more.