Knightshaiid wrote on Jun 25^th, 2011 at 8:16pm:

Why not just admit polygraphs don't work, have no scientific basis, and shouldn't be used at all?

Because that would not be true.  They work, have a scientific basis and should be used.  I am not aware of your use of CM's and cannot dispute anything you may have encountered, nor can I attest to your claim. 

I have been able to detect physical countermeasures on numerous occasions, they are evident when used.  I cannot comment on all uses of mental CM's, I am sure they have been used successfully by some.  Experiments I have conducted (non scientific) with mental CM's demonstrated to me that they are difficult to detect and impossible to prove.