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It is also referred to as the Lie Detector test.
http://en.wikipedia.org/wiki/PolygraphWithin the US federal government, a polygraph examination is also referred to as a psychophysiological detection of deception (PDD) examination.
Polygraphs are in some countries used as an interrogation tool with criminal suspects or candidates for sensitive public or private sector employment. The use and effectiveness of the polygraph is controversial.
Some examples of questions that could be used for former drug users are:
Do you plan on dealing illegal drugs when you are released?
Do you plan on stealing to support your drug habit?
Do you plan on using violence to obtain illegal drugs?
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