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Evolution of Forensics: Milestones Along the Timeline

Trace the key developments in forensic science, from the observation of pulse changes to the revolutionary DNA profiling in 1984. Follow the progression of fingerprint identification, luminol development, and more. Unveil how these advances shaped modern investigative techniques.

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Evolution of Forensics: Milestones Along the Timeline

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  1. History of Forensics: a TIMELINE

  2. Early Discoveries • In 250 B.C. Erasistratus noticed that his patient’s pulse would increase when they were telling a lie.

  3. 1800’s • In 1828, William Nichol invented the polarizing light microscope. • In 1837, Walter Specht developed luminol.

  4. 1879, Bertillon’s Anthropometry comes on the scene.

  5. 1903 – The William West – Will West Case at a Federal Prison in Leavenworth, Kansas, changed the way that people were classified and identified. Anthropometry out … fingerprints in.

  6. In 1889, Alexandre Lacassagne matched bullets to a gun barrel using the number of grooves present – called “rifling”.

  7. FINGERPRINTS • 1858, fingerprints identify an individual in India as the owner of a building, stamped on a document, because he couldn’t write. • 1882, a surveyor in New Mexico put his fingerprints on a survey to show that it was his. • 1892, first criminalfingerprint identificationidentified the mother!

  8. 1900’s • Early 1900’s, Locard established first police crime lab, developed his exchange principle: “Every contact leaves a trace” • In 1901 A, B, and O blood types discovered in Vienna, Austria, while trying to figure out why transfusions were killing people.

  9. DNA PROFILING • 1984, Sir Alec Jeffreys developed DNA manipulation techniques, now used world-wide • DNA solved the Colin Pitchfork case. • 1ST CASE in which a suspect was eliminated using DNA

  10. TIME LINE ASSIGNMENT 1. Groups of 32. Assemble 6 events or discoveries, on 6 pages, taped together short end to short end.3. Indicate year at top; invention/discovery at bottom… like this: 1879 (DRAWING) Anthropometry

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