You’ve probably heard that the so called “Lie Detector” test (the polygraph) doesn’t actually detect when you’ve lied, but rather just takes some physiological measures from your body and these have to be interpreted by experts. Sometimes those experts make mistakes. Join me as I describe a psychological study that tested a new kind of “Lie Detector” – drawings. This study involved Agents, Missions, an Interception, and a mysterious “package”. This is psychology? You better believe it. It’s a subfield of psychology called “forensic psychology“.