MeHere,

Unfortunately, the Employee Polygraph Protection Act of 1988 includes a blanket exemption for federal, state, and local government. This law makes it illegal for a private employer to require an employee to submit to any kind of lie detector "test," including CVSA, in situations such as yours.

However, there may be applicable state, county, or municipal statutes or codes, or even a union contract, governing the use of lie detector "testing." I think it would be best for you and your co-workers to consult a local attorney experienced in labor law. If you don't know any such lawyers, Martindale's Lawyer Locator service may be helpful:

http://www.martindale.com

If you have a union representative, he/she may be able to help.

You and your colleagues will be interested to know that the "National Institute of Truth Verification," which manufactures and markets CVSA, has admitted in court that their device "is not capable of lie detection." Your inference that investigators "have nothing on anyone and are stretching for something" is likely correct.