ADPtooltip1="The basic assumption that the truth lies between the testimony of the two sides always shifts the advantage to the lying side and away from the side telling the truth. Under most circumstances, this shift put together with the fact that the truth is going to also be twisted in such a way as to bring detriment to the innocent person, results in the advantage always resting in the hands of liars - psychopaths.  <P> Even the simple act of giving testimony under oath is useless. If a person is a liar, swearing an oath means nothing to that person. However, swearing an oath acts strongly on a serious, truthful witness. Again, the advantage is placed on the side of the liar. [Robert Canup] "