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in-1930-a-patent-was-issued-to-helene-shelby-for

In 1930, a patent was issued to Helene Shelby for a giant, glowing-eyed skeleton that was designed to make criminals confess.

The idea was for police to scare suspects into telling all by sitting them in a dark room, raising a curtain to reveal the device, and questioning them through a megaphone in the skeleton’s skull – which contained a camera to record their statements for use in court.

(Source, Source 2)