WASHINGTON — Thousands of job applicants come to FBI offices all across the country every year, eager to work for the top law enforcement agency in the U.S.

But many of them have their hopes dashed, and it’s not because of their work experience or education or criminal records. They’re turned down because they’ve failed their polygraph tests.

The FBI’s policy of barring job candidates who fail their polygraph tests clashes with the view of many scientists that government agencies shouldn’t be relying on polygraph testing to decide whether to hire or fire someone. Experts say polygraph testing isn’t a reliable indicator of whether someone is lying – especially in employment screening.

“I was called a lazy, lying, drug dealing junkie by a man who doesn’t know me , my stellar background or my societal contributions,” wrote one black applicant in Baltimore, who said he was told he qualified for a job except for his polygraph test failure. “Just because I am young and black does not automatically denote that I have ever used any illegal drugs.”


Although all polygraph testing is controversial, many scientists are highly critical of its use in job screening, saying it’s especially prone to inaccuracies because the questions are often more vague than they are in criminal investigations and therefore they’re more likely to provoke reactions from the innocent that might seem like deception.

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