Mr. Wygant became a licensed polygraph examiner in 1976. Prior to that he worked for five years as an investigator in an Oregon District Attorney’s office, and for another five years as an investigator for the Oregon Attorney General. During that period he was president of the Oregon State Investigators Association.

Mr. Wygant obtained a degree from Portland State University. His original polygraph training was at the Backster School in San Diego in 1976. Since then he has obtained more than 1,000 additional hours of training. He has taught new examiners at polygraph schools and has lectured on advanced topics at professional association seminars. At retirement in Dec., 2016, he was a full member of the American Polygraph Association (APA) and the Northwest Polygraph Examiners Association (NPEA). Both associations have presented him with awards in recognition of his work. He was certified by the American Polygraph Association for post-conviction sex offender testing.

From 2001 through 2008 Mr. Wygant served as a member of the Polygraph Licensing Advisory Committee for the Oregon Department of Public Safety Standards and Training.

He has conducted over 6,000 examinations, more than 2,500 of those on sexual issues, including about 1,000 examinations of convicted sex offenders. He has also done more than 140 examinations in murder cases. While the majority of his clients have been criminal defense attorneys, he has also done work for law enforcement agencies and parole and probation offices. He has testified as an expert witness in several courts in Oregon and Washington.

For 20 years he published a free bi-monthly newsletter for other examiners about polygraph. He has had at least 15 articles about polygraph and interviewing published in a variety of journals and other publications. He has made about two dozen presentations on polygraph to professional organizations, and he was an instructor at a polygraph school for several years.

In 2008 he received the John D. Jenkins Memorial Award from the Northwest Polygraph Examiners Association “In Recognition of Outstanding Contributions And Dedication to the Northwest Polygraph Examiners Association.” In 2009 he was recognized by the Polygraph Licensing Advisory Committee (PLAC) of Oregon “In appreciation of your many years of dedicated service to the PLAC and the polygraph profession.” In 2009 he was presented with the John E. Reid award of the American Polygraph Association “For distinguished achievements in polygraph research, teaching or writing.”