The polygraph "expert" sought to express an opinion as to ultimate facts in issue, which is peculiarly the province of the jury.

Contestants are given a polygraph test administered by a polygraph expert in a pre-screening session answering over 50 questions.

The polygraph expert who administered the test had issued a statement earlier in the campaign saying Mr. Bloomberg had passed.

You get the right polygraph expert, you get the right answers.

The polygraph expert was a man named Keith Rosson, and he was one of the best.

Today Tonight reported that the polygraph expert who conducted the lie detector test on Jodi Power has received numerous death threats.

They loved the subplot about the polygraph expert, hired by the city's afternoon newspaper, The Examiner.

Commissioner Weston sent for a hypnotist, a psychiatrist, and a polygraph expert.

To sort out the complaints, the command center includes four polygraph experts.

The man was Phil Karakov, and he was a polygraph expert.