Bill Dedman Quotes
Polygraphs are not allowed as evidence in most U.S. courts, but they're routinely used in police investigations, and the Defense Department relies heavily on them for security screening.
Dedman, Bill. "Polygraph tests often a 'sham,' critics say." msnbc.com, 2007.
The polygraph, better known as a lie detector, is a highly unreliable device that is easy to defeat and has a very high percentage of false positives. It is illegal to use as evidence in the courts of most civilized country, but it is used by intelligence agencies and some law enforcement agencies as a form of intimidation as many people do not realize the shortcomings.
Bill Dedman (born 1960) is a Pulitzer Prize-winning American journalist, an investigative reporter for Newsday, and co-author of the biography of reclusive heiress Huguette Clark, Empty Mansions: The Mysterious Life of Huguette Clark and the Spending of a Great American Fortune.