Truth & Deception Technologies

05/31/2026

🔐 When your tool handles sensitive investigative data, security isn’t optional.

DecepTech™ VSA has undergone a full OWASP security assessment, ensuring the software you rely on meets industry-recognized standards for application security.

Law enforcement deserves tools they can trust — from the examination room to the data layer.

DecepTech™ VSA. Built secure. Built for professionals.

🔗 tdtvsa.com

Real-time deception detection with AI Auto Annotation, speaker diarization, and multi-language support. Trusted by law enforcement worldwide.

08/07/2023

The Orlando Police Heroes Foundation, a 501c3 charitable organization, … Shawn Dunlap needs your support for 2 Injured Orlando Police Officers Need Your Help

07/20/2023

Use Voice Stress Analysis to review transcripts, investigate insurance fraud, investigate medical fraud, check on a cheating spuse and many other applications.

05/25/2021

Training is currently virtual. This method of training works well for everyone. Book your training today.

07/02/2020

It is with great sadness we announce the passing of my longtime friend and business partner, Leo Brunette. Leo fought to uphold the standards of Voice Stress Analysis. He was a great mentor and business partner. He will be missed by us and the Voice Stress community.

03/29/2019

We specialize in narrative analysis examinations. We can take recorded interviews/conversations and perform analysis. This takes unique training to handle this type of analysis.

03/29/2019

Visit our website at https://www.tdtvsa.com to learn about Voice Stress Analysis and our software and certified training.

DecepTech™ works in real time, in person, using a standard microphone or via recorded speech using small, inexpensive, off the shelf digital recorders. It works well with speech, either live or recorded, over the telephone and from television and radio broadcasts. As the subject speaks, the comput...