polygraph

The polygraph report could have been easily overlooked.

One passed a polygraph; the other showed inconclusive results.

Employees in the DEA’s polygraph unit, which vets prospective agents, reported being pressured to pass candidates after they failed a lie detector test, report says.

The plea deal requires him to submit to polygraph tests during those debriefings, according to the Associated Press news agency.

Executive producer Tom McLennan admitted to the committee that the polygraphs used were "not 100% accurate", and that he did not know how reliable they were.