The results of a polygraph test are admissible in a trial as long as the administrator of the polygraph test qualifies as a witness and will take the witness stand to introduce the results into evidence.

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Polygraph test results are generally not admissible in court due to questions about their reliability and the belief that they can prejudice the jury. The admissibility of such evidence varies by jurisdiction, but in many places, both federal and state courts have rules or precedents that limit or completely prohibit their use.

The Results of a Polygraph Test Are Admissible in a Trial