Lie Detector Leads to Execution of Innocent Man in Taiwan

Dennis Engbarth reports for Inter Press Service on the case of Chiang Kuo-ching, a Taiwanese airman who was executed in 1997 for the rape and murder of a five-year-old girl. Military investigators tortured a confession out of Chiang after he failed to pass a lie detector “test.” Since then, DNA evidence and a palm-print have incriminated a … Read more

Troy Davis and the Polygraph

Lawyers for Troy Davis, who faces execution by lethal injection at 19:00 hours Eastern time today for the 1991 slaying of an off-duty Savannah police officer, are seeking a polygraph test in a bid to persuade the Georgia Board of Pardons and Paroles to stay the execution. The Davis case has been the subject of much … Read more

Philadelphia P.D.’s Pre-Employment Polygraph Failure Rate Pegged at 63%

In his latest article, Philadelphia Inquirer columnist Daniel Rubin documents the plight of Greg Thomas, an investigator for the city court system who recently failed a Philadelphia Police Department pre-employment polygraph despite, he insists, having told the truth. Rubin notes that since reinstating polygraph screening this year (it had been discontinued in 2002), the Philadelphia … Read more

Kyle Hill on Polygraphy

Skeptic Kyle Hill, a graduate student at Marquette University who maintains the blog Science-Based Life, takes a look at the evidence for polygraphy in “The Polygraph Test: Can Science Tell if You Are Lying?” He compares the claims made by polygraph advocates such as the American Polygraph Association with the findings of the Congressional Office of … Read more

New Law Enforcement Polygraph Handbook

As the American Polygraph Association holds its annual seminar in Austin, Texas this week, one of the topics on the agenda is a program run by a consortium of federal, state, and local law enforcement agencies called “Polygraph Law Enforcement Accreditation” (PLEA). Participating agencies include the Customs and Border Patrol (CBP), the Defense Criminal Investigative … Read more

Polygraphing Players Is Not Cricket

Steve Waugh
Polygraph advocate Steve Waugh

Guardian reporter David Hopps reports in a story published by the Sydney Morning Herald that former Australia cricket team captain Steve Waugh is advocating the use of lie detectors in an attempt to root out corruption in the scandal-plagued sport. Excerpt:

ANDREW Strauss and Mahendra Singh Dhoni will be encouraged to help stamp out corruption in cricket by taking lie-detector tests as the MCC uses the occasion of the 2000th Test match to step up its campaign to clean up the game.

The controversial proposal is the brainchild of former Australia captain Steve Waugh, who wants leading captains such as Strauss and Dhoni to act as ambassadors and role models by voluntarily putting their reputations on the line.

But the proposal is not supported by the Australian Cricketers’ Association, because lie-detector tests are not admissible in court.

”I applaud Steve Waugh for looking at creative and proactive ways to deal with corruption, but we wouldn’t support the use of polygraphs at this point in time,” ACA chief executive Paul Marsh said. ”Results can be affected if you’re nervous or under stress or whatever, so there may be reasons, other than not telling the truth, that you fail it and we couldn’t open players up to that.”

Waugh is at Lord’s as chairman of an MCC world cricket committee working party that was charged last year with investigating ways corruption might be eradicated. He made his chief proposal only metres away from where Strauss and Dhoni supervised practice ahead of a Test series that will decide whether England or India finish the summer as the No 1 team in the world.

The Australia Cricketers’ Association is right to reject lie detector “testing,” as it has no scientific basis. While polygraphy is inherently biased against truth-tellers, the “test” can trivially be defeated using simple countermeasures that anyone can learn and polygraph operators cannot detect.

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Anchorage Police Officer Who Allegedly Lied About His Identity Passed Polygraph

Casey Grove reports for the Anchorage Daily News that an Anchorage Police Department officer who joined the force under someone else’s name passed a pre-employment polygraph examination. The officer has been indicted for passport fraud. Federal officials allege that the patrolman, who was hired under the name Rafael Espinoza, is actually Rafael Mora-Lopez, a Mexican … Read more

Wired Magazine on How to Beat a Polygraph Test

The April 2011 edition of the UK edition of Wired magazine features an article by Mark Russell titled, “How to Beat a Polygraph Test.” Russell interviewed AntiPolygraph.org co-founder George Maschke for this column. For further reading on how polygraph “tests” can be beaten, see AntiPolygraph.org’s free book, The Lie Behind the Lie Detector.

Philadelphia Police Department to Re-Institute Pre-Employment Polygraph Screening

Philadelphia Police Commissioner Charles Ramsey

WTFX Fox 29 Philadelphia reports that beginning this spring, Philadelphia Police Department applicants will be subjected to polygraph screening:

In the past two years we’ve seen a lot of Philadelphia police officers fired and criminally charged for cases of theft, assault, and drug dealer shake-downs.

So now, Philadelphia Police Commissioner Charles Ramsey is turning to an old tool to weed out potential bad apples.

On Tuesday, Ramsey confirmed to Fox 29 that starting this spring, all recruits headed for training at the police academy’s next class will undergo a lie detector or polygraph test.

Ramsey says polygraph tests will be administer [sic] to the 125 candidates for the next police recruit class in addition to the physical, psychological and written tests.

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The Inconvenient Issue of Alleged Anthrax Killer Bruce Ivins’ Polygraph Results

On Tuesday, 15 February 2011, the National Research Council made public its Review of the Scientific Approaches Used During the FBI’s Investigation of the Anthrax Letters, seriously undermining the Bureau’s case against U.S. Army researcher Bruce Ivins, whom the FBI maintains was the sole perpetrator of the anthrax mailings. Polygraphy was not among the scientific … Read more