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The assessment of physiological parameters of the innocent subjects in the SPOT in the presented cases has its limits, while a comparison of these parameters with the charts of the perpetrators causes doubts as to the methodological soundness (lack of a sufficient number of cases). There are as many as four reasons hindering the assessment. First of all, the number of presented charts of the...
This paper involves fifty-one re-examinations of original polygraph tests that resulted in conflicted outcomes and examinations where deliberate distortions were believed to have been employed. The Polygraph Validation Test (PVT) was successfully employed in these re-examinations to rectify the original problems and/or confirm attempts by examinees at countermeasures or augmentations.
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