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Blog Field Notes.
Perspectives on voice stress analysis, training, and investigative practice.
Voice Stress Analysis Across Languages: What Agencies Should Ask Before Deployment
Language-specific evidence, interpreters, original speech, and examiner responsibilities.
Read article ›November 1, 2026Gold and Diamond Mine Security: Bring the Interview to the Field
Portable AISIS and VASIS examination workflows for gold and diamond mine security: field readiness, examiner training, lawful use, and evidence-led follow-up.
Read article ›November 2, 2026Voice Stress Analysis Reliability: Questions to Ask
A practical framework for reading voice stress analysis research, defining its limits, and evaluating evidence for a specific investigative use.
Read article ›October 26, 2026Computer Voice Stress Analysis: A Practical Guide
A disciplined guide to computer voice stress analysis, structured interviewing, recording quality, documentation, and independent corroboration.
Read article ›October 21, 2026Voice Stress Analysis for Internal Affairs
Where AISIS and VASIS may fit in Internal Affairs interviews, with practical safeguards for evidence, officer rights, and examiner review.
Read article ›October 20, 2026Voice Stress Analysis and Polygraph Accuracy Claims: What Does the Scientific Evidence Actually Support?
Robert Martin examines polygraph and voice stress accuracy claims, independent research, error rates, and standards for transparent validation.
Read article ›October 19, 2026Diamond Security Investigations: Where AISIS Fits
How trained diamond-security teams can use AISIS in structured interviews, investigate discrepancies, and test leads against independent evidence.
Read article ›October 15, 2026Voice Stress Analysis Software: A Guide for Investigators
What voice stress analysis software can support in a disciplined review workflow, where its limits remain, and what trained teams should document.
Read article ›October 12, 2026Voice Stress Analyzer: An Agency Evaluation Checklist
A practical evaluation framework for agencies assessing voice stress analysis systems, training, evidence, and operational fit.
Read article ›October 5, 2026What Can Cause a Voice Stress Indication? Context, Confounders, and Examiner Judgment
What voice stress analysis can observe, what it cannot establish, and how trained examiners use it responsibly.
Read article ›September 28, 2026Voice Stress Analysis Training: What Qualified Practice Requires
A practical guide to preparation, structured interviewing, documentation, and responsible examiner judgment.
Read article ›November 9, 2025AI-Assisted Voice Stress Analysis: Features, Evidence, and Examiner Review
Review AISIS features, product-specific evidence requirements, and the role of trained examiners alongside VASIS.
Read article ›February 2026, updated October 2026Beyond the Myth of the Lie Detector
There is no lie detector, only stress measurement.
Read article ›October 24, 2025Understanding the Science Behind VIPRE
A closer look at vagal response analysis and micro-tremor theory.
Read article ›December 24, 2025The Importance of Professional Associations in Voice-Stress Analysis
Why continuing education and professional standards matter.
Read article ›January 2, 2026The Role of Exculpatory Voice Stress Analysis in Criminal Defense
The role of structured voice stress analysis in defense investigation.
Read article ›August 1, 2026Voice Stress Analysis in War Crime Investigations
Application to victim, witness, source, and subject interviews.
Read article ›September 16, 2025Voice Stress Analysis
A scientifically grounded approach to voice-based stress detection.
Read article ›Public reference
U.S. investigative & violent crime statistics.
Current national figures from the FBI and Bureau of Justice Statistics, gathered for trained investigative professionals, agencies, and examiners.
Open the statistics reference ›