Polygraph Results Often in Question
"The CIA, the FBI and other federal agencies are using polygraph machines more than ever to screen applicants and hunt for lawbreakers, even as scientists have become more certain that the equipment is ineffective in accurately detecting when people are lying.
Instead, many experts say, the real utility of the polygraph machine, or "lie detector," is that many of the tens of thousands of people who are subjected to it each year believe that it works -- and thus will frequently admit to things they might not otherwise acknowledge during an interview or interrogation."
Duh
First off, the original way to conduct a polygraph was to allow the person being scrutinized to see a copy of the questions so as to eliminate surprise from the mix of complicating factors. Not anymore. And please now, there's a reason they're not admissable in court, okay. And we won't even get into the professional magicians who've fooled polygraphs as part of their stage show, because almost anyone can be taught to beat the thing or confuse it to the point whereby the results can't be relied upon.
No comments:
Post a Comment