In some countries polygraphs are used as an interrogation tool with criminal suspects or candidates for sensitive public or private sector employment.
As such, it is considered a useful interrogation tool.
Central Intelligence Agency training manuals from the 1960's and 1980's taught the stripping of prisoners as an interrogation tool.
Galtero extracted a cudgel from the interrogation tools before he glided through the door, silent as a shadow, and vanished down the hall.
"Dogs as an interrogation tool should have been specifically excluded," a classified section of the report said.
IT is a time-honored interrogation tool and a staple of film noir: the lie-detector test that can incriminate or exonerate.
The commission acknowledged that "moderate physical pressure" might sometimes be necessary as an interrogation tool.
Its real concern is whether the camp has worked as an interrogation tool.
They found this measure "unavoidable" and "an interrogation tool of utmost importance."
I'm proud to have had each and every one of them on my team, and I will not let you use their deaths as an interrogation tool.