Officials at the Chicago Police Department seem to have reached the same conclusion about polygraph results that I reached after conducting four years of exhaustive research into the federal government’s use of credibility assessment technologies, including the polygraph.
CPD has, according to a Chicago Tribune report Thursday, drastically scaled back on giving so-called lie-detector tests in the course of criminal investigations. The decision came after decades of relying on controversial polygraph examinations to help solve crimes.
In my latest nonfiction book, THE CLAPPER MEMO, I share many important findings, including:
• The lengths to which high-ranking polygraph loyalists inside the Departments of Defense and Justice have shown they are willing to go to maintain their foothold in the credibility assessment arena when challenged by backers of a newer credibility assessment tool proven more reliable and more effective than polygraph;
• Conflicts of interest and ethical lapses on the part of senior government officials and expose revealing communications between individuals on both ends of lucrative government research grants that yielded pro-polygraph results;
• Descriptions of how law enforcement officers across the United States use non-polygraph technology successfully as an investigative tool during both routine and high-profile criminal investigations; and
• Firsthand accounts obtained during exclusive interviews with Americans who used non-polygraph technology to interrogate enemy combatants, detainees, and criminal suspects in places like Afghanistan, Guantanamo Bay, Mexico and Iraq.