Polygraph Evidence in Court
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Description: Examining polygraph results as a sensible approach to the problem of wrongful convictions due to perjury by police, jailhouse informants, and co-operating prosecution witnesses.
HE SAID / SHE SAID: Polygraph Evidence in Court In recent years, frequent instances of wrongful criminal convictions and mistaken verdicts in prominent civil cases have attracted media attention, and become a matter of public concern. They have reinforced the sense that attorneys, including prosecuting attorneys, often willingly and even eagerly make use of highly suspect testimony. The Ramparts police perjury scandals in Los Angeles, and similar scandals in Illinois, West Virginia, and other states, have heightened public awareness of the untrustworthiness of testimony by police and informants, especially jailhouse informants and accomplices testifying under plea agreement. Corrolary to the public awareness of official misconduct has been a high volume of accusations against law enforcement officers, and public skepticism when, as usually happens, the officers are cleared. While the accusations are pending, however, they are a source of anxiety and distraction for innocent officers. The volume of accusations, together with the "he said /she said" nature of most cases and the presumed credibility of an officer vis a vis an accused criminal, create a screen behind which the occasional rogue cop can successfully hide, sometimes for years. This article looks at how a novel, limited use of polygraph results might be used to address the problems.
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| Page title: | HE SAID / SHE SAID: Polygraph Evidence in Court |
| Keywords: | polygraph, FBI, lie detector, law, reform, law reform, jury, verdicts, jury mistakes, wrongful convictions, witness, expert witness, self-incrimination, perjury, evidence, paired results, admissibility, exclusion, untruthful, deception, deceptive, non-deceptive, false positive, false negative . |
| Description: | Presents the idea that courts can use polygraph results to exclude testimony where an examination has found a witness to be deceptive, and that result is corroborated by non-deceptive result on the opposing side. The pairing of results reduces by a factor of at least five the uncertainty that underlies resistance to the polygraph . |
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| Date | Creation Date: 30-jun-1997 Expiration Date: 29-jun-2017 |