Stan B Walters –
The Lie Guy®
International Expert in Interview & Interrogation Techniques
Stan B. Walters is internationally recognized for advancing a defensible standard in investigative interviewing — treating it as the legally high-risk operational discipline it truly is. His work strengthens interview reliability by moving investigators away from technique-driven tactics and toward information-rich, narrative-based interviews that withstand legal and courtroom scrutiny.
“What happens in the interview room echoes in the courtroom.”™
Stan B. Walters — known internationally as The Lie Guy® — is a leading authority on evidence-based interview and interrogation. For more than four decades, he has trained investigators, military, and intelligence professionals to conduct interviews that are not only effective in the field, but reliable, defensible, and capable of withstanding courtroom scrutiny.
Walters is best known for reframing how investigators diagnose interviews — moving them away from technique-driven tactics and outdated deception myths, and toward information-rich, narrative-based conversations grounded in behavioral science and cognitive decision-making.
With over 40 years of investigative experience and more than 50,000 instructional hours, Stan B. Walters is internationally recognized as The Lie Guy® — a leading expert in ethical, evidence-based interview and interrogation techniques. He has trained thousands of professionals across law enforcement, military, intelligence, and fire investigation agencies in the U.S. and around the world.
Stan B. Walters is widely known for evaluating interview and interrogation methods through courtroom-level scrutiny—focusing on what survives legal challenge, not what merely sounds persuasive.
A Courtroom-Defensible Standard for Interview Training
Modern interview and interrogation training often relies on techniques that feel intuitive but fail under legal and scientific scrutiny.
Investigative interviewing deserves the same modernization cycle and audit rigor as use-of-force, tactical operations, and other legally exposed disciplines.
My work emphasizes ensuring that the methods taught in the interview room can withstand the same standards applied in the courtroom.
I authored a position paper outlining why interview techniques that cannot survive Daubert-level scrutiny should not be taught, used, or defended—regardless of how common or longstanding they may be.
Elevating Interview Standards for Over Four Decades
Stan specializes in the evaluation and application of behavioral interviewing methods grounded in science, psychology, and operational experience. With over 1,500 documented interviews across 40 U.S. correctional institutions. Including work at the United States Disciplinary Barracks (USDB) and the historic Changi Prison in Singapore, his career reflects a sustained integration of research and real-world application.
He has trained personnel in 48 U.S. states and internationally in Canada, Australia, New Zealand, Germany, Singapore, the Netherlands, South Korea, and the UAE.
This combination of documented custodial interviews, correctional environments, and international training provides structured validation of a framework designed to withstand legal scrutiny and operational pressure.
Trusted by Global Agencies
Stan’s diagnostic framework has been delivered to and integrated within law enforcement, intelligence, and military organizations across a global spectrum. His client base includes U.S. federal agencies, elite military units, and international security organizations committed to strengthening and professionalizing their investigative standards.
- FBI
- DEA
- U.S. Secret Service
- Texas Rangers
- ATF
- State & Local Fire Marshals
- Administrative Office of the US Courts
- NYPD
- New York State FIre Academy
- Numerous State and Local Police Academies
- Singapore Police Force
- United Arab Emirates - State Security
- National Security Agency
- Pentagon Force Protection Agency
- US Army 1st, 3rd, 4th & 25 Infantry
- Defense Criminal Investigative Service
- US Air Force -Office of Special Investigations
- US Air Force S.E.R.E.
- US Army CID & Military Police School
- NASA - Office of The Inspector General
- US Postal Inspection Service
- US Treasury Inspector General for Tax Administration
- Dubai U.A.E. - State Security
- International Association of Arson Investigators
These engagements reflect sustained institutional collaboration focused on
reliability, defensibility, and investigative modernization.
Tactical Training in High-Threat Environments
Stan’s instruction has supported counterintelligence and field operations during the Gulf War and other high-stakes deployments. He has delivered advanced behavioral training to military and security personnel preparing for real-world operations in hostile environments.
As a certified Level 5 instructor with the U.S. Krav Maga Association, Stan holds a 2nd Degree Black Belt. He has worked with ThreatEvents.com assisting in decision-making, threat recognition, and survival strategies through programs such as A.L.E.R.T. (Ambush & Lethal Environment Recognition Training) and H.E.A.T. (Hostile Environment Awareness Training).
Academic Background
- M.S., Criminal Justice Administration – Eastern Kentucky University
- B.S., Sociology (Deviant Behavior) – University of Louisville
Research, Publications & Media Contributions
Add Your Heading Text HereStan has contributed extensively to the professional development of investigative interviewing through published works, research, and instructional content adopted by agencies and institutions worldwide.
- Principles of Kinesic Interview & Interrogation – Foundational textbook on behavioral interviewing.
- The Truth About Lying: How to Spot a Lie and Protect Yourself From Deception – General audience guide to spotting deception.
- Co-author of 3 peer-reviewed papers on deception detection (presented to the American Psychological Association)
- Co-developer of the FBI Training Academy’s first interactive DVD course on interview and interrogation
- Creator of The Lie Guy® YouTube Channel – 50,000+ views on professional interviewing content
- Author of The Signal — an ongoing thought-leadership series on reframing interview decision-making and investigative judgment.
Expert Services
Stan provides expert consultation and litigation support grounded in evidence-based interview standards and courtroom defensibility.
- Expert reports and affidavits
- Forensic review of interviews (audio, video, transcript)
- Testimony on interview reliability, suggestibility, and voluntariness
- Trial preparation and cross-examination strategy
- Evaluation of investigative training standards and interview protocols
Ready to Elevate Your Interview Game?
Let’s connect — whether you need courtroom clarity, agency training, or expert insight, Stan’s ready!
Connect with Stan Walters –
The Lie Guy®
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