Deuteronomy 19:16-20

16This is what you must do whenever a witness takes the stand to accuse a person falsely of a crime.

17The two people involved must stand in the Lord’s presence, in front of the priests and judges who are serving at that time.

18The judges must make a thorough investigation. If it is found that the witness lied when he testified against the other Israelite,

19then do to him what he planned to do to the other person. You must get rid of this evil.

20When the rest of the people hear about this, they will be afraid. Never again will such an evil thing be done among you.