Although they can be used in conducting criminal investigaions, the results of polygraphs cannot normally be entered into evidence in court as other types of "evidence" might be.
1980 - United States v. Roberts
The prosecutor had told the grand jury unequivocally that polygraph results were inadmissible in a court of law and the court called her on the carpet and stated that her statememnt was false and said "The Court dissapproves of the prosecutor's bold statement to the Grand Jury that polygraph evidence is inadmissible at trial. Such statements are absolutely untrue. The Ninth Circuit has held that polygraph evidence is admissible within the trial court's discretion."
As current law stands it is up to the trial judge as to how he or she will handle any motion to admit polygraph evidence.
However Legally in all 50 States of the US you can refuse to submit to a polygraph test and the fact that you refused the test can't be used against youin a court of law..But if you take the test it could be used against you if the trial judge decides to allow it.
If a grand jury is reviewing the evidence to see if sufficient data exists to proceed with a trial they can use the results of a polygraph test in their recommendation to no-bill or indict. In my experience the accused should always appear before the grand jury and/or take a polygraph. Passing a polygraph will almost always get a no-bill. Failing it or failing to take one will usually result in an indictment.
No, the results of polygraph tests are inadmissible in court as evidence.Added: They can, however, be used by law enforcement as an aid to investigation.
No, polygraph tests are not admissible in court. Court precedents have decided that the polygraph test is unreliable, and that the test could dishonestly persuade the jury's verdict. The polygraph test is only used for investigative, law enforcement needs.
no
The polygraph test is not "proof-positive". The polygraph test is not completely unreliable.
Some evidence is inadmissible in a court of law.
They are widely used in criminal investigation- but are generally inadmissible in court. the Vatican came out and condemned the device way back in l958 in the reign of Pope Pius XII. Pope blasted the idea as an intrusion of privacy.
A polygraph is used to help detect if someone is lying.
Hearsay is not evidence, the court rules will not allow it to be heard. As you have stated in your question it is, by definition, INADMISSIBLE.
A polygraph examination is admissible in court only by the stipulation (agreement) of both parties. This is true in all U.S. courts, not just Indiana. Polygraph evidence is seldom used in court.
AHH a lie detector ANSWER by Engl1sh: A perfessional typically uses the term 'polygraph' test.
I think you mean a polygraph test. Polygamy is the practice of having more than one spouse. A polygraph test is a lie-detector test. It depends on the laws, in some places you can use a polygraph test as part of a legal trial and in other places you can't.
yup.