Former CIA Officer Andrew Bustamante speaks the truth on how to beat a polygraph:
https://www.youtube.com/watch?v=2XyCwC9rBmw
No, former CIA officer Andrew Bustamante does not speak the truth on how to beat a polygraph. He's full of shit.
George, what part of Andrew Bustamante's assessment of the polygraph do you disagree with?
In the video clip you linked, Bustamante claims that polygraphs measure body temperature. They don't.
He claims there are two kinds of countermeasures, rehearsing one's lies and creating "essentially just noise" by, for example, taking a laxative right before the polygraph."
This reveals that he either knows very little about polygraph procedure and countermeasures or that he's deliberately misdirecting.
He makes no mention of the different polygraph techniques used by the CIA and FBI (Relevant/Irrelevant versus the Probable-Lie "Control" Question "Test"), and the different sorts of countermeasures that can be applied against these formats.
Bustamante strikes me as a self-promoting bullshit artist who cares little about what is true.