Suing the polygraph operator for defamation?

[nomopolys4me]

Does anyone here know of any successful, (or even unsuccessful) lawsuits against polygraph examiners for the tort of defamation, when they call an honest person a liar?

I have a law degree, but do not practice law, so I know the legal problems in defeating the standard hold harmless agreement that polygraph operators require the subject to sign.

Interesting insight here.  A couple of years ago, I agreed to take a polygraph test for a police position, and went through the whole pre-poly procedure, up to signing the agreement and release of liability.  I politely told the operator that I would not relieve him of liability in the event he falsely accused me of lying.  He then refused to admister the test!

[Twoblock]

If EVERYONE would refuse to sign that crapola piece of worthless paper, the polygraph would go away. Just a few won't work. It will take everyone. Who wants to work for an enity that requires hokey pokey to get hired anyway.

[Sergeant1107]

Police jobs can be so difficult to get that, when an applicant has advanced to the stage at which they are required to take a polygraph, they are unlikely to want to make any sort of waves at all.

Also, in my case at least, I was under the impression that if I told the truth and did not withhold any information I would pass the polygraph without issue.  So I would likely not have been too interested in ending my chances of being hired by refusing to sign the hold-harmless agreement required by the polygraph operator.