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Voice Stress

Testing Courses

Steven Steyn: 082 545 2449 | This email address is being protected from spambots. You need JavaScript enabled to view it.

Andrew Selepe: 076 699 5276 | This email address is being protected from spambots. You need JavaScript enabled to view it.

This research paper represents 18-years of data evaluating the use of the VSA technology for the detection of stress associated with possible deception. Using a combinatorial approach of VSA and a standardized questioning process, an expert obtained the results of stress detection associated with criminal activities, which are proven in 95% of cases. On the other hand, there were no cases when a confession was obtained in the absence of stress. The most considerable stress levels were detected during the investigation of murder cases, grand larceny and sexual crimes. When the VSA technology was used for diagnostic purposes to predict deception, positive results were obtained in approximately 95% of the cases. Additionally, a strong, indirect relationship (approximately 94%) was discerned between jeopardy (crime consequences) and confession rates among guilty suspects. The implications of the findings for the suitability of VSA as a deception detection tool in the field are discussed.

Steven Steyn are a fully qualified Voice Stress Analyst Trainer. Our voice stress training courses are usually done at our office in Centurion, Pretoria. If the client requests the Trainer to assist outside our office then that would not be a problem. Training takes up to 5 days (1 week). Once a person is finished with training the person will receive a qualified Certification as a Voice Stress Analyst. Please note there are no hidden cost involved and no additional cost after the training is finished. For more info please contact our office for more info regarding Training as a Voice Stress Analyst.

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