Polygraph Glossary Practice

exculpatory examination

Definition

An exculpatory examination is a PDD test offered to an accused person against whom other strong evidence already exists. Common in military settings where urinalysis has indicated illegal drug use, the exculpatory exam gives the accused an opportunity to present evidence supporting innocence. The...

What Is an Exculpatory Examination?

An exculpatory examination is a polygraph test offered to an accused person against whom evidence already exists, with the purpose of potentially exonerating them. A No Deception Indicated result may support the accused person's claim of innocence and influence investigative direction.

Common Applications

Exculpatory examinations are common in military settings where urinalysis has produced a disputed positive result, criminal investigations with circumstantial evidence, workplace misconduct investigations, and relationship testing where one partner wishes to demonstrate fidelity. In each case, the examinee seeks to use the polygraph result to counter existing evidence or allegations against them.

Procedural Requirements

An exculpatory examination follows all standard requirements: validated technique, proper question formulation, informed consent, standardised test data analysis, and complete documentation. Being requested by the accused does not alter methodology or examiner obligations under the APA Code of Ethics.

Considerations

The ex parte phenomenon and friendly polygrapher hypothesis are relevant. Blind chart review and standardised scoring ensure results are based on physiological data. For private testing, see our booking page.

Cross-references

More practice terms in this glossary

situational comparison question A situational comparison question is used in the Modified Relevant/Irrelevant technique. Rather than a question the e... dissociation Dissociation in PDD refers to the deliberate mental disengagement of an examinee from the testing situation — a form ... Question Formulation The process of constructing polygraph test questions according to established principles. APA standards require that ... padding Padding is an alternate term for the irrelevant items in a Known-Solution Peak of Tension test. In some reports, it r... Examiner Bias The potential for an examiner's prior knowledge of case facts, victim statements, or investigative suspicions to unco... Compliance Testing A polygraph examination used to verify that an individual is adhering to specific conditions or agreements, such as p...

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