Contributor

Dr. David Matsumoto

Dr. David Matsumoto, Director of Humintell, is a world-renowned expert in the fields of emotion, nonverbal behavior, deception, and culture. He was a Professor of Psychology at San Francisco State University for over 30 years, and was the Founder and Director of SFSU’s Culture and Emotion Research Laboratory.

Articles

Behavioral Indicators of Deception: Scientific Myths and Realities

A nose scratch, a mouth cover, hand wringing, leg tapping, looking away when answering—over the years, different claims have been made about these and other nonverbal behavior as possible cues to deception. But what’s the truth?

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Violence in the Workplace

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Dr. David Matsumoto

Articles

Digital Partners

Violence in the Workplace

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LPM Webinar TODAY: Internal Theft, Threats, and Investigations

ORCAS in ACTION WEBINAR ON-DEMAND: ORC March Madness 2025

Available On-Demand Now: Retail’s Dangerous Triangle of Trafficking, Trucking, & Organized Theft

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WHITEPAPER: How Organized Retail Crime Is Threatening the Retail Industry

WHITEPAPER: US Retail Worker Safety Report

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The SEMM Holdings Story: A Journey of Dedication, Expertise, and Innovation

Agentic AI for Physical Security

The State of AI in Retail Surveillance