407: Barry Colvert – John Walker Spy Ring Case, Early Days of FBI Polygraphs

Retired agent and veteran polygraph examiner Barry Colvert reviews the over 20 polygraph exams he conducted on the John Walker spy ring case, beginning with Barbara Walker, John's ex-wife who was almost dismissed as a drunken spouse seeking revenge for unpaid child support money and alimony, when she claimed John had been selling military secrets to the Soviet Union. That quirky beginning led to one of the most damaging losses and compromises to national security ever investigated. Barry got confessions from John Walker and his brother Arthur, and interrogated co-conspirators Jerry Whitworth and John's son, Michael Walker. Check out episode show notes, photos, and related articles: https://jerriwilliams.com/407-barry-colvert-john-walker-spy-ring-case-early-days-of-fbi-polygraphs/ Join my Reader Team to get the FBI Reading Resource - Books about the FBI, written by FBI agents, the 20 clichés about the FBI Reality Checklist, and keep up to date on the FBI in books, TV, and movies via my monthly email. Join here. http://eepurl.com/dzCCmL    Buy me a coffee - https://www.buymeacoffee.com/JerriWilliams Check out my FBI books, non-fiction and crime fiction, available as audiobooks, ebooks and paperbacks wherever books are sold. https://jerriwilliams.com/books/