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The lie detector is itself based on lies…
Did you know:
- The consensus view among scientists is that polygraph testing has no scientific basis?
- The FBI considered the creator of the lie detector test to be a phony and a crackpot?
- The man who started the CIA's polygraph program thought that plants can read human thoughts?
- The foremost polygraph advocate in academia was discredited by a federal judge?
- The longest polygraph school produces newly minted polygraphers in just 14 weeks -- less than half the time it takes to graduate from a typical barber college?
- The National Center for Credibility Assessment (the erstwhile DoD Polygraph Institute) suppressed a study suggesting that innocent blacks are more likely to fail the polygraph than innocent whites?
- The researcher who developed the U.S. Government's polygraph Test for Espionage and Sabotage "thought the whole security screening program should be shut down?"
- The National Academy of Sciences concluded that "[polygraph testing's] accuracy in distinguishing actual or potential security violators from innocent test takers is insufficient to justify reliance on its use in employee security screening in federal agencies?"
- Spies Ignatz Theodor Griebl, Karel Frantisek Koecher, Jiri Pasovsky, Larry Wu-tai Chin, Aldrich Hazen Ames, Nicolás Sirgado, Ana Belen Montes, and Leandro Aragoncillo all passed the polygraph?
- One of the most prolific serial killers in U.S. history passed the polygraph and killed again, while an innocent suspect failed?
- Al-Qaeda and Iraqi insurgents know full well that the lie detector is bogus?
- You don't have to be a psychopath, go to spy school, or somehow believe your own lies to fool the polygraph? (We'll reveal how it's done.)
Educate yourself. Before playing Russian roulette with your reputation, learn how to protect yourself against this invalid test. Download our free book (4 mb PDF):
The dirty little secret behind the polygraph is that the "test" depends on trickery, not science. The person being "tested" is not supposed to know that while the polygraph operator declares that all questions must be answered truthfully, warning that the slightest hint of deception will be detected, he secretly assumes that denials in response to certain questions -- called "control" questions -- will be less than truthful. An example of a commonly used control question is, "Did you ever lie to get out of trouble?" The polygrapher steers the examinee into a denial by warning, for example, that anyone who would do so is the same kind of person who would commit the kind of behavior that is under investigation and then lie about it. But secretly, it is assumed that everyone has lied to get out of trouble.
The polygraph tracings don't do a special dance when a person lies. The polygrapher scores the test by comparing physiological responses (breathing, blood pressure, heart, and perspiration rates) to these probable-lie control questions with reactions to relevant questions such as, "Did you ever commit an act of espionage against the United States?" (commonly asked in security screening). If the former reactions are greater, the examinee passes; if the latter are greater, he fails. If responses to both "control" and relevant questions are about the same, the result is deemed inconclusive.
The test also includes irrelevant questions such as, "Are the lights on in this room?" The polygrapher falsely explains that such questions provide a "baseline for truth," because the true answer is obvious. But in reality, they are not scored at all! They merely serve as buffers between pairs of relevant and "control" questions.
The simplistic methodology used in polygraph testing has no grounding in the scientific method: it is no more scientific than astrology or tarot cards. Government agencies value it because people who don't realize it's a fraud sometimes make damaging admissions. But as a result of reliance on this voodoo science, the truthful are often falsely branded as liars while the deceptive pass through.
Perversely, the "test" is inherently biased against the truthful, because the more honestly one answers the "control" questions, and as a consequence feels less stress when answering them, the more likely one is to fail. Conversely, liars can beat the test by covertly augmenting their physiological reactions to the "control" questions. This can be done, for example, by doing mental arithmetic, thinking exciting thoughts, altering one's breathing pattern, or simply biting the side of the tongue. Truthful persons can also use these techniques to protect themselves against the risk of a false positive outcome. Although polygraph operators frequently claim they can detect such countermeasures, no polygrapher has ever demonstrated any ability to do so, and peer-reviewed research suggests that they can't.
Personal Statement of a CIA Applicant
A recent applicant for employment with the Central Intelligence Agency shares his or her polygraph experience.
NY Lawsuit Details Alleged Fraud by TV Polygraph Operator Daniel Ribacoff’s International Investigative Group, Surveillance of Actress Leah Remini for Church of Scientology
A recent filing in a New York lawsuit presents overwhelming evidence that a private investigation company run by TV polygraph operator Dan Ribacoff engaged in fraudulent billing practices.
LAPD Polygraph Operator Michael Ward Spins the Truth About Polygraphy
In a public relations video posted to Facebook on 24 April 2020, LAPD polygraph operator Michael Ward explains for applicants the special procedures in place for polygraph screening during the COVID-19 pandemic. He also tells some whoppers.
Racial Discrimination Alleged in New York Metropolitan Transportation Authority Police Polygraph Screening
An applicant for employment with the New York State Metropolitan Transportation Authority Police Department has filed a federal Equal Employment Opportunity Commission complaint in connection with a pre-employment polygraph screening "test" administered by that department.
Part 2 of the Pretend Podcast's Interview with Doug Williams
In season 7, episode 7 (The Lie Detector part 2) of the Pretend true crime documentary podcast, Javier Leiva concludes what is likely the last public interview of the late polygraph critic, Doug Williams.
Remembering Doug Williams
"I knew Doug since before the launching of AntiPolygraph.org in 2000. He had generously mailed me copies of news articles and a VHS cassette with interviews in which he had appeared…."
Doug Williams, RIP
It is with deep sadness that we report that longtime polygraph critic Douglas Gene Williams died on Friday, 19 March 2021, after an illness.
Doug Williams Interviewed on the Pretend Podcast
In season 7, episode 6 (The Lie Detector part 1) of Pretend, a true crime documentary podcast, Javier Leiva interviews Doug Williams.
Kyriakos Kotsoglou on Polygraphs in the British Legal System
In episode 102 of the legal podcast Excited Utterance, Vanderbilt University law professor Edward K. Cheng interviews Northumbria University senior lecturer in law Kyriakos N. Kotsoglou about the use of polygraphs in the United Kingdom.
Texas DPS Polygraph School Graduation Ceremony Showcases Law Enforcement's Faith in the Pseudoscience of Polygraphy
On Friday, 12 March 2021, the Texas Department of Public Safety Polygraph School graduated its 29th class….
CIA's "Molly Hale" Lies About Lie Detectors
The CIA provides a false and misleading reply about polygraph screening in response to an inquiry from a prospective applicant.
Dr. Phil Presents Polygraph Operator Gil Witte as a "Countermeasures Expert"
San Diego polygraph operator Guillermo R. "Gil" Witte has appeared on the Dr. Phil show for the first time.
Matt Orchard on "The Lie of the Polygraph"
Matt Orchard of Christchurch, New Zealand addresses the pseudoscience of polygraphy in the latest episode of his YouTube documentary series, Crime and Society.
Apparent CIA Officer Brian Jeffrey Raymond, Charged With Drugging and Sexually Molesting Multiple Women, Evidently Beat the Polygraph
Circumstantial evidence strongly suggests that Raymond was employed by the Central Intelligence Agency and that he beat the polygraph at least once.
Archive of Private Russian Polygraph Forum Leaked
AntiPolygraph.org has been provided with an archive of a Russian polygraph-related message board including a private forum for polygraph operators.
TV Polygraph Operator Dan Ribacoff's International Investigative Group Allegedly Bilked Client
A lawsuit filed in Nassau County, New York alleges that TV polygraph operator Daniel D. "Dan" Ribacoff and his "family owned & operated" private investigation company, International Investigative Group, bilked the plaintiff out of millions of dollars.
Canada's Intelligence Watchdog Issues Report Critical of Polygraph Screening
The National Security and Intelligence Review Agency has issued a report critical of the Canadian Security Intelligence Service's reliance on polygraph screening.
Stathis and Marinakis' "Shadows into Light": A Failure of Peer-Review
In January 2020, the Journal of Child Sexual Abuse published online an article by Marigo J. Stathis and Maria M. Marinakis purporting to show that the Computer Voice Stress Analyzer (CVSA), a quack device marketed as a lie detector by the so-named National Institute for Truth Verification (NITV), is highly useful for interrogating pedophiles who use the Internet in the commission of crimes, producing no false positives and a 100% confession rate from those who failed.
Oklahoma Probationer Benjamin Lawrence Petty Sentenced to 15 Years' Imprisonment for Failing Polygraph and Denying Guilt
On Friday, 23 October 2020, Oklahoma district judge Dennis Morris revoked Benjamin Lawrence Petty’s probation and sentenced him to 15 years in prison because he allegedly failed two polygraph "tests" and denied having committed the crime for which he was on probation.
Dr. Phil Replaces Jack Trimarco with Polygraph Operator John Grogan, Whom Trimarco Called "a Fraud"
The tabloid television talk show Dr. Phil, which debuted in 2002, has long used polygraphs as a ratings gimmick, especially during Nielsen sweeps, a rating period that is especially important for advertising revenue.
Polygraph Screening Sidelined Dozens of Afghan Interior Ministry Officers
In 2018, some 40 officers of the Afghan Ministry of the Interior saw their careers sidetracked after they were compelled to undergo polygraph screening at the U.S. embassy in Kabul.
Polygraph Statement of Sherzai Sulimany
An officer in the Afghan Interior Ministry shares his polygraph experience.
AntiPolygraph.org Marks 20 Years Online
Friday, 18 September 2020 marks AntiPolygraph.org's 20th anniversary online….
Accused Russian Spy Peter Rafael Dzibinski Debbins Evidently Beat the Polygraph to Penetrate INSCOM and the DIA
On Thursday, 20 August 2020, a grand jury in the Eastern District of Virginia indicted former U.S. Army Special Forces officer Peter Rafael Dzibinski Debbins of Gainesville, Virginia on a single count of "Conspiracy to Gather or Deliver Defense Information to Aid a Foreign Government."
Accused Spy Alexander Yuk Ching Ma Evidently Beat the Polygraph to Penetrate the FBI
On Thursday, 13 August 2020, FBI Special Agent Chris Jensen filed under seal a criminal complaint against Alexander Yuk Ching Ma of Honolulu, Hawaii, charging him with "Conspiracy to Gather and Communicate National Defense Information of the United States to a Foreign Nation."
Ignatz Theodor Griebl: The Nazi Spy Who Escaped Thanks to the Polygraph
AntiPolygraph.org has obtained archival news photographs of a Nazi spy who escaped to Germany in 1938 thanks to the FBI's misplaced reliance on polygraph chart readings.
NITV Falsely Claims Peer-Reviewed Study Shows CVSA Is Highly Accurate
The so-named National Institute for Truth Verification (NITV), which markets a putative lie detector called the Computer Voice Stress Analyzer (CVSA), and its associated group, the National Association of Computer Voice Stress Analysts (NACVSA), have in recent years claimed that a 2012 independent peer-reviewed study shows that CVSA has an accuracy rate on the order of 97% or higher.
Polygraph "Tests" and How to Beat Them
AntiPolygraph.org co-founder George Maschke's talk, "Polygraph 'Tests' and How to Beat Them," presented on 31 July 2020 at the Hackers on Planet Earth (HOPE) 2020 conference, may now be viewed online.
San Jose P.D. Polygraph Operator Robert E. Foster Charged with Multiple Felonies
The Santa Clara County, California District Attorney’s Office has charged Robert E. Foster, a polygraph operator with the San Jose Police Department, with "with using his private security company to commit insurance fraud, tax evasion, wage theft, and about $18 million in money laundering."
Would-be Spy Elizabeth Jo Shirley: Yet Another Apparent Failure of Polygraph Screening
On Monday, 6 July 2020, the U.S. Department of Justice announced that Elizabeth Jo Shirley of Hedgesville, West Virginia, had pleaded guilty to unlawfully retaining classified information.
Charlatan v. Charlatan: NITV Sues E. Gary Baker
On Wednesday, 17 June 2020, "Dr." Charles Humble's NITV Federal Services, LLC, which markets the scientifically baseless Computer Voice Stress Analyzer (CVSA) to governmental agencies, filed in a Florida court an amended complaint in litigation against competitor Elwood Gary Baker, who runs Baker Group International, and his associate Michael Savage, who runs Expertos VSA, Inc.
TV Polygraph Operator Daniel Ribacoff Denies Falsely Branding Steve Wilkos Show Guest as a Liar, But Deletes Posts When Challenged
Polygraph operator Daniel Ribacoff, who performs for the NBCUniversal Television Distribution syndicated daytime television talk program, The Steve Wilkos Show, has publicly denied having wrongly accused show guest Anca Pennington of lying.
Book Review: False Confessions: The True Story of Doug Williams and His Crusade Against the Polygraph Industry
Author Jack Straw, a former Chicago police captain who was Doug Williams' fellow inmate in Florence, Colorado, retells Williams' life story in a book that will be of interest to all students of polygraphy.
LAPD Polygraph Policy Documents Disclosed
AntiPolygraph.org has obtained and published two previously unavailable Los Angeles Police Department (LAPD) polygraph unit policy documents.
Criminal Confessions - Treason!
A message board poster claims to have lied and passed a pre-employment polygraph and to have sold classified information after his security clearance was revoked for drunk driving.
Wisconsin Court of Appeals Throws Out Post-Polygraph Confession on Grounds of Coercion
In a 19 May 2020 ruling, the Wisconsin Court of Appeals upheld the suppression of a post-polygraph confession in the child molestation case of Wisconsin v. Adam W. Vice (2018AP2220-CR).
CVSA Marketer NITV Sued for Fraud
Bianca Fletcher, a former Arkansas Department of Corrections employee who alleges that she "was fired, purportedly for being deceptive" on a Computer Voice Stress Analysis (CVSA) "test," has filed a federal lawsuit against NITV, LLC, NITV Federal Services, LLC, their founder, Charles Humble, NITV employee Gene Shook, and two "John Does."
NCCA Interview & Interrogation Manual
AntiPolygraph.org has obtained and published the November 2013 edition of the National Center for Credibility Assessment manual, Interview & Interrogation. In addition, we have published a 9-page Counterintelligence Post-Test Interview Supplement.
Neither Tara Reade Nor Joe Biden Should Take a Polygraph "Test"
In an interview with Tara Reade, who has accused Democratic presidential candidate Joe Biden of sexually assaulting her in 1993, Megyn Kelly asked Reade if she would be willing to take a polygraph "test."
"Green River Killer" Gary Leon Ridgway's Polygraph Charts
On Monday, 7 May 1984, polygraph operator Norman R. "Norm" Matzke of the King County, Washington Sheriff's Office conducted a polygraph "test" of Gary Leon Ridgway regarding the deaths of prostitutes whose bodies had been dumped in or near the Green River beginning in 1982.
NITV Federal Services Court Filing Shows Flat Revenue, Declining CVSA Sales
Financial data disclosed in federal court by NITV Federal Services, LLC, which markets the scientifically baseless Computer Voice Stress Analyzer (CVSA) to law enforcement agencies, reflect flat revenue and a multi-year sales slump.
Updated Law Enforcement Polygraph Handbook
AntiPolygraph.org has obtained a more recent copy of the Polygraph Law Enforcement Accreditation (PLEA) Guide for Standards and Practices.
Defense Intelligence Agency Polygraph Policy Disclosed
AntiPolygraph.org has obtained an unredacted copy of the regulation governing the Defense Intelligence Agency's (DIA's) polygraph program. The document, marked "For Official Use Only" and titled "Credibility Assessment Program" is DIA Instruction 5200.002 dated 3 July 2014.
Accused WikiLeaks CIA Vault 7 Source Joshua Adam Schulte Knew the Lie Behind the Lie Detector
An exhibit submitted by prosecutors in the Espionage Act trial of Joshua Adam Schulte for allegedly providing a collection of CIA hacking tools dubbed "Vault 7" to WikiLeaks shows that Schulte understood that polygraph "testing" is bogus.
Polygraph "Test" Drives Innocent Steve Wilkos Show Guest to Attempted Suicide
On Tuesday, 10 December 2019, Anca Pennington, 30, of Omaha, Nebraska purchased three bottles of Tylenol, each containing 24 pills, after passing through security at Newark Liberty Airport in New Jersey. She then proceeded to a restroom stall, swallowed all of the pills, and laid down to die.