It seems that Jeffrey K. Warner's polygraph countermeasure training came to light in connection with Operation Lie Busters, probably through the seizure of Chad Dixon's business records. The U.S. Department of Justice, in its position on sentencing in the case of U.S. v. Chad Dixon, notes, among other things:


Quote:

Dixon trained at least seven other sex offenders: • J.K.W. of Quincy, Illinois, was a registered sex offender convicted in December 2010 for possessing child pornography. J.K.W. had his probation revoked and was fined $2,000 after he was found to have taken Dixon's polygraph countermeasures training in violation of his probation. The evidence showed that J.K.W. was trained in February 2011, prior to later passing polygraph exams in March 2011 and July 2011. ...

It's also worth noting that the training Dixon provided to Warner seems to have been effective, despite the fact that Dixon, an electrician by trade, had no special background in polygraphy and provided his instruction based largely on what he learned from Doug Williams' material.