In this series on the polygraph, I’m reviewing some of the applications and issues of interest to security personnel considering polygraphs as a tool for pre-employment screening and in investigations ...

In my first article in this series on the polygraph, I introduced a bit of history about the “lie detector.” Today I’ll review some of the applications of these devices in the 20th century. A report ...

You’ve seen it on television – investigators on shows like “24” and “Lie to Me” use polygraph testing to determine a suspect’s guilt or innocence. They are able to instantly solve a crime by strapping ...