Deuteronomy 19:16

Your eye shall not pity him, but you shall purge the innocent blood from Israel that it may go well with you.

You shall not remove your neighbor’s landmark, which they of old time have set, in your inheritance which you shall inherit, in the land that the LORD your God gives you to possess.

One witness shall not rise up against a man for any iniquity, or for any sin that he sins. At the mouth of two witnesses, or at the mouth of three witnesses, shall a matter be established.

then both the men, between whom the controversy is, shall stand before the LORD, before the priests and the judges who shall be in those days;

and the judges shall make diligent inquisition; and behold, if the witness is a false witness, and has testified falsely against his brother,

then you shall do to him as he had thought to do to his brother. So you shall remove the evil from among you.