Deuteronomy 19 v 16 - 21
"If a malicious witness takes the stand to accuse a man of a crime, the two men involved in the dispute must stand in the presence of YaHuWaH before the priests and the judges who are in office at the time. The judges must make a thorough investigation, and if the witness proves to be a liar, giving false testimony against his brother, then do to him as he intended to do to his brother. You must purge the evil from among you. The rest of the people will hear of this and be afraid, and never again will such an evil thing be done among you. Show no pity: life for life, eye for eye, tooth for tooth, hand for hand, foot for foot."