Welcome to SAPAVSA South African Polygraph & Voice Stress Association We purchase and supply quality used polygraph systems Striving for Excellence

Welcome to SAPAVSA South African Polygraph & Voice Stress Association

Our Mission at SAPAVSA is to promote and uphold professional and ethical behaviour in the Detection of Deception industry in SA and worldwide.

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We purchase and supply quality used polygraph systems

For either new or refurbished polygraph machines simply enquire via email

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Striving for Excellence

To ensure the use of validated and reliable methodologies and technologies. To promote thorough training instruction and to generally regulate our members.

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DOD Definitions

DOD: Detection Of Deception The science, art and skill of detecting untruthful utterances. PDD : Psychological Detection Of Deception Related to the science underpinning DOD BFP : Biofeedback Polygraph Conventional polygraph first devised circa 1925 VSA: Voice Stress Analysis Manual systems. First devised circa 1965.

Training Available

Voice Polygraph Examiner Biofeedback Polygraph Examiner SCAN: Statement Content Analysis Truth Extraction: SCAN & Kinesics DUALTECH™ Examiner Prices on application

Validated VSA

Voice Stress Analysis (VSA) is a validated PDD system. It has been subjected to many research projects since 1970. It is as reliable as BFP when used by properly trained and accredited examiners. The most recent research validating VSA is the Chapman Stathis research paper.     Link:  View full paper . To see Screenshots click on […]

Our Mission

Our Mission at SAPAVSA is to promote and uphold professional and ethical behaviour in the Detection of Deception industry in SA and worldwide. To ensure the use of validated and reliable methodologies and technologies. Promote thorough training instruction and to generally regulate our members.