Twoblock wrote on Dec 19^th, 2003 at 1:17am:

If one can't be totally truthful and pass a polygraph, then it's not worth the powder it would take to blow it to hell.

yup

The whole point of a probable lie control question is to get the examinee to not only tell a lie on the controls, but have him be more concerned about the the control question lies, than truth on the relevant questions (assuming he doesn't have to lie on those).

The often bogus assumptions made about controls are a major source of error.

-Marty