I'm not sure which post of mine you're referring to, but I think you would be wise to politely but firmly decline the CVSA "test" and not speak with anyone from the police without a lawyer present. If you don't yet have a lawyer, I think you should at least consult one with expertise in criminal defense, as it appears that you are under active criminal investigation.

If asked why you're refusing the CVSA, and you do have a lawyer, you should be able to state that your lawyer has advised against it. If you don't have a lawyer, you can briefly explain that you've researched CVSA and learned that it's not reliable. And you can mention this site if you like. But it would be a mistake to allow yourself to get drawn into a debate over your decision.

Regarding why you should not speak with investigators whether or not a CVSA (or other lie detector) is employed, see these presentations by law professor James Duane and police interrogator George Bruch:

Thank you for your help, the detective called me Friday afternoon and asked if id come in and I politely declined and told him I did a lot of research and found that the cvsa is not reliable and NOT a lie detector test, also I consulted with my lawyer and consulted me to not take it either and that nobodday, absolutely nobody has to take the test and it wouldn't be smart to, so the detective accepted my reply and asked if I still will come in Monday and talk to him, I said it would be fine and I'm going in there at nine tomorrow, is that wise?

God I love antipolygraph.org! I've learned so much from this amazing website, so if lie detectors and cvsa test aren't admisable is court and are the exact oposite of science, why do they still even exist?

I'm a new member and not certain of the format for new posts, but here goes. I recently interviewed for a civilian position with a law enforcement agency. I met with two LEOs, in a dimly lit room,one of whom sat, looking at his lap, and asking only one question during, about a 20 minute interview. The othe officer was the primary interviewer. I was not selected - not a problem. Question: Is it legal to use a portable voice stress analyzer, without notifying the interview subject? The reject letter I received stated that another applicant had been selected - not a more qualified, educated, or experienced applicant. I'm moving to supposition, but are these devices used to disqualify individuals for other reasons, i.e., age bias? I am pursuing the reason for disqualification through the proper channels, as I have successfully performed this type of work in the past, and there were 7 positions open. Any answer reference law will be appreciated. Thank you.