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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Dr Kyriakos N. Kotsoglou is senior lecturer in law at Northumbria University. Dr Marion Oswald is vice-chancellor’s senior fellow in law at Northumbria University and associate fellow of the Royal United Services Institute
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