Polygraphs are frequently used in criminal investigations, but rarely used in court. How do polygraphs work? The idea behind the polygraph, which was first developed in the ‘20s, is that l ying causes ...
Federal agencies have stepped up their efforts over the past few weeks to find potential leakers, and some — like the FBI, the Department of Homeland Security and the Department of Defense — are ...
Law By Mike on MSN
This is how lie detector tests can be beaten
Lie detector tests are often treated as truth machines, but they’re far from perfect. In this video, we explain how ...
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