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 ...

Can you handle the truth? Regardless, it’s Tommy Platt’s job to find it out. Platt, an investigator with the Aiken County Sheriff’s Office, is also the agency’s polygraph examiner. Also known as a ...

A version of this story appeared in the On Background newsletter from The Washington Times. Click here to receive On Background delivered directly to your inbox each Friday. The Drug Enforcement ...