Leaked Documents Further Confirm Polygraph Community’s Inability to Detect Sophisticated Countermeasures

In September 2014, retired Defense Intelligence Agency counterintelligence agent Scott W. Carmichael accused Donald Krapohl, then the number two official at the National Center for Credibility Assessment (NCCA, the federal government’s polygraph school), of violating the Espionage Act by indirectly making classified information about the U.S. government’s methodology for polygraph countermeasure detection available to the […]

Federal Polygraph School Gave Countermeasure Information to Polygraph Company

Coming on the heels of an accusation that a senior official at the National Center for Credibility Assessment (NCCA) facilitated the transfer of classified information to the government of Singapore via the Lafayette Instrument Company, AntiPolygraph.org has received information that NCCA has provided polygraph countermeasure documentation to a representative of Stoelting Co., another polygraph-manufacturing company. […]

Senior Official at Federal Polygraph School Accused of Espionage

Scott W. Carmichael, a recently retired counterintelligence investigator with the Defense Intelligence Agency, has accused Donald Krapohl, Special Assistant to the Chief, National Center for Credibility Assessment (NCCA) and longtime editor of the American Polygraph Association quarterly, Polygraph, of violating the Espionage Act of 1917. In an e-mail message to retired FBI polygraph examiner Robert […]