Dani Dyer, Jack Fincham, Laura Anderson and Jack Fowler all take on the famous Love Island lie detector test in the ITV2 villa - but how much can we trust them? Love Island’s famous lie detector ...

How does a lie detector work? Lie detectors work on the principle that anyone who’s lying will be nervous, and nervous people tend to produce more adrenaline, which makes their hearts beat faster, ...

LIE detector tests have become more and more frequent on TV – with programmes such as The Jeremy Kyle Show and Love Island making use of the devices. But how exactly do polygraph machines work? And ...

In police investigations - and often when someone applies for a job when national security can be compromised - a suspect or applicant will be subjected to a lie detector or polygraph test. They are ...

In February of 1994, the FBI arrested Aldrich Ames, who had been a CIA employee for 31 years. Ames was arrested and charged with espionage. He was a Russian spy. For nine years, he had been passing ...

LIE detector tests have become more and more frequent on TV - with programmes such as The Jeremy Kyle Show and Love Island making use of the devices. But how exactly do polygraph machines work? And ...