3sadgirl said:
what if the the person who does the polygraphs will go to court and be a witness? will that help or does that even matter? how do you prove some one is lying?
My response:
Polygraph (Lie Detector) test results are generally not admissible as evidence in a court of law. The reason being is that they are subject to "human interpretation", and you'll never get two polygraphers to agree to the same interpretation of the polygraph results. This causes confusion. Unless both parties agree to allow the test and testimony of a polygrapher to be accepted into evidence, such test and results will not be accepted by a court.
No, a polygrapher cannot testify for you. Again, no two polygraphers will agree as to the results. The test is subject to interpretation, and interpretations are merely personal opinion. There are too many variables involved to allow such a test to be viable as evidence.
You ask how someone can be proven to be a liar in court. Again, there are innumerable ways to do this, and far too many to list here. Your attorney is in a better position to explain and discuss a few examples to you. There is a fine line, however, between perjury and opinion. To be perjurious, a statement must be made that is known to be false, and said with the purposeful intent to deceive a court, despite facts to the contrary.
IAAL
