Deuteronomy 19:17 (KJV)

Then the elders of his city shall send and fetch him thence, and deliver him into the hand of the avenger of blood, that he may die.

Thine eye shall not pity him, but thou shalt put away the guilt of innocent blood from Israel, that it may go well with thee.

Thou shalt not remove thy neighbour's landmark, which they of old time have set in thine inheritance, which thou shalt inherit in the land that the LORD thy God giveth thee to possess it.

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

If a false witness rise up against any man to testify against him that which is wrong;

And the judges shall make diligent inquisition: and, behold, if the witness be a false witness, and hath testified falsely against his brother;

Then shall ye do unto him, as he had thought to have done unto his brother: so shalt thou put the evil away from among you.

And those which remain shall hear, and fear, and shall henceforth commit no more any such evil among you.

And thine eye shall not pity; but life shall go for life, eye for eye, tooth for tooth, hand for hand, foot for foot.