A Santa’s grotto has a novel way to find out whether children have been naughty or nice - by having them take a lie detector test.
Shopping centres Westfield London, and Westfield Stratford City, hope to make Santa's life a little easier this year by offering children a quick-fire polygraph test to see whether they've been as well behaved as they claim.
Joining Father Christmas for the first time is the expert polygraph examiner, Paul Bramley - coined 'Mr Fibmas'.
