An old newspaper cutting showing the American suspected murderer E. Drew Clark being interviewed with the aid of a lie detector. One of the earliest lie detectors was invented by James Mackenzie in 1902. In 1921 John Augustus Larson invented a mor reliable machine which was improved upon by Leonard Keeler in the 1930s .It became known as the “Compact Keeler Polygraph“. The basic design is still used today. Legal & medical bodies argue about its accuracy. The Stoelting Polyscribe the worlds first all electronic polygraph arrived in 1988 followed by the computerised Polygraph in 1992.

---

Size: 5906px × 3880px
Photo credit: © Colin Waters / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., .., ..., america, american, ancient, antique, archive, clark, clipping, compact, computer, computerised, computerized, criminality, detection, detector, drew, electric, electronic, fbi, forensic, historic, history, james, keeler, law, leonard, lie, lies, machine, mackenzie, murderer, newspaper, order, photo, photograph, police, polygraph, polyscribe, report, science, states, stoelting, telling, united, usa, vintage