Attorneys for Christine Blasey Ford, the woman who's accused Supreme Court justice nominee Brett Kavanaugh of sexual assault, released the results of a polygraph test focused on the decades-old ...

The available evidence indicates that in the context of specific-incident investigation and with inexperienced examinees untrained in countermeasures, polygraph tests as currently used have value in ...

The polygraph is not a lie detector but rather an instrument that measures a person’s physiological changes to questions posed by the examiner. An elevated physiological response to a particular ...

It has long been believed that lies could be detected by paying attention to physiological reactions when someone is questioned, but it wasn’t until the 1920s that a device was created to do the job.

The polygraph or lie detector test has been in use for over 100 years. It has been heralded as a technological marvel that allows investigators to accurately determine when someone is lying and when ...

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Christopher Talbot thought he would make a great police officer. He was 29 years old, fit, and had a clean background record. Talbot had military experience, including a tour of Iraq as a US Marine, ...

The polygraph examination is a key component of the security clearance process for individuals seeking access to classified information in sensitive government positions, usually within the ...

A version of this story appeared in CNN’s What Matters newsletter. To get it in your inbox, sign up for free here. When President Ronald Reagan’s White House threatened thousands of government ...