Canonical Source · peer reviewed study

Mental and physical countermeasures reduce the accuracy of polygraph tests

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Evidence context

How this source is used

Evidence roles describe what this source helps establish inside each Investigation. They are local to that use, not permanent labels attached to the publication itself.

Investigation

Can deliberate countermeasures reduce polygraph accuracy?

Supports

A controlled field-style experiment found that trained mental or physical countermeasures enabled roughly half of guilty participants to produce false-negative outcomes and were difficult for examiners to identify.

Subject families

Skin Empiric
Skin