How much can we really learn from people's words and behavior—and where do we risk fooling ourselves? In this talk, former Secret Service agent and polygraph examiner Brad Beeler explores the practical realities of interrogations, deception detection, statement analysis, and reading people in high-stakes situations. We discuss why confirmation bias is such a threat to good investigations, why many popular body-language claims are overstated, and how investigators might make use of subtle behavioral clues without becoming wrongly overconfident in them. Brad shares stories from criminal investigations, explains how experienced interviewers think about truth and deception, and offers a polygraph examiner’s take on the controversial subject of polygraphs. We also talk about the importance of rapport-building and listening to what people are actually trying to communicate.

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