Kyriakos N. Kotsoglou and Marion Oswald

Are lie detector tests for terrorists really a good idea?

(Getty images)

You might have assumed that the polygraph (or ‘lie detector’ as it is commonly known) was something used only for entertainment on the Jeremy Kyle Show. It is, after all, little more than a relic from the 1920s when people turned to psychic mediums and truth-telling machines in the misguided search for certainty after the horrors of the Great War.

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