Why do some polygraph examinations produce inconclusive results?
When there are inconclusive results this simply means that insufficient physiological data was available to render a conclusive result that the examinee was telling the truth or attempting deception. When this occurs usually a re-examination is conducted. The fact that a person’s polygraph examination produced inconclusive results protects the person from being wrongly identified as attempting deception. Critics of polygraph often classify inconclusive results as errors and this is an incorrect classification.
