Deuteronomy 19:16-19

If a false witness makes a statement against a man, saying that he has done wrong, Then the two men, between whom the argument has taken place, are to come before the Lord, before the priests and judges who are then in power; And the judges will have the question looked into with care: and if the witness is seen to be false and to have made a false statement against his brother, Then do to him what it was his purpose to do to his brother: and so put away the evil from among you.