Until someone opens the box, nobody knows what’s inside. Body language training claims to know anyway. Here is the three-box problem and what it holds up instead.

Science-Based Interviewing (SBI) is an information-gathering approach to interview and interrogation based on peer-reviewed behavioral and cognitive science, including research funded through the FBI-administered High-Value Detainee Interrogation Group (HIG). SBI emphasizes accurate, reliable, and corroborated information through open-ended questioning, active listening, rapport, Strategic Use of Evidence, and cognitive interviewing.