Elaad's 1997 study revealed that examiner knowledge of crime-relevant items weakens GKT detection, while motivation amplifies it — reshaping polygraph best practices.
Read Article →Explore how fMRI, EEG, and NIRS neuroimaging are transforming deception detection — with accuracy data, landmark studies, legal rulings, and expert analysis.
Read Article →How UK charities use polygraph testing to investigate internal fraud, embezzlement, and donation misuse. Expert guidance for trustees.
Read Article →Learn what a mixed polygraph exam is, why examiners combine CQT, POT, and CIT formats in one session, APA standards for independent scoring, and…
Read Article →Complete guide to polygraph test formats — CQT, DLT, RIT, GKT/CIT, screening tests and more. Learn which format you'll face and how each works.
Read Article →William G. Iacono's psychophysiology research at the University of Minnesota shaped how science evaluates polygraph testing over three decades.
Read Article →Gershon Ben-Shakhar's pioneering CIT research, meta-analyses of polygraph validity, and NRC contributions shaped global polygraph science for over four decades.
Read Article →How Japan's NRIPS standardized the Concealed Information Test across 47 prefectures, creating the world's most scientifically defensible national polygraph program.
Read Article →Discover how Avital Ginton's pioneering Israeli polygraph research produced landmark field validity studies and innovative accuracy estimation methods.
Read Article →Discover how Eitan Elaad's decades of CIT research from within Israel's police force shaped modern polygraph science with landmark field studies and examiner bias…
Read Article →Explore how Sweden, Norway & Denmark shaped global deception science, developed alternative credibility methods, and approached polygraph admissibility.
Read Article →How China built one of the world's largest polygraph programs, from ancient rice ordeals to 8,000+ examiners and AI-integrated deception detection.
Read Article →How Israel developed one of the world's most advanced polygraph programs — from IDF screening and Mossad counterintelligence to pioneering GKT/CIT research.
Read Article →Discover Japan's 70+ year polygraph history — from post-WWII adoption of the Keeler Model 302 to becoming the world's only large-scale user of the…
Read Article →Complete examiner guide to the Concealed Information Test (CIT): scientific foundations, administration protocols, accuracy data, and Japan's field model.
Read Article →Complete guide to the Guilty Knowledge Test (GKT/CIT): orienting response science, accuracy data, Japan's operational use, scoring protocols, and examiner best practices.
Read Article →Explore how EEG and P300 brainwave technology detect concealed information, how it compares to polygraph testing, and where the science stands today.
Read Article →Master the Peak of Tension Test (POT) — the specialized polygraph technique for detecting guilty knowledge using KS-POT and SPOT formats.
Read Article →Research confirms polygraph testing remains valid for events during intoxication. Studies show no significant effect on outcomes when examinees are sober at testing time.
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