Deuteronomy 19:11-21

11 "But if any man hates his neighbor, and lies in wait for him, and attacks him, and wounds him mortally so that he dies, and the man flees into one of these cities,
12 then the elders of his city shall send and fetch him from there, and hand him over to the avenger of blood, so that he may die.
13 Your eye shall not pity him, but you shall purge the guilt of innocent blood from Israel, so that it may be well with you.
14 "In the inheritance which you will hold in the land that the LORD your God gives you to possess, you shall not remove your neighbor's landmark, which the men of old have set.
15 "A single witness shall not prevail against a man for any crime or for any wrong in connection with any offense that he has committed; only on the evidence of two witnesses, or of three witnesses, shall a charge be sustained.
16 If a malicious witness rises against any man to accuse him of wrongdoing,
17 then both parties to the dispute shall appear before the LORD, before the priests and the judges who are in office in those days;
18 the judges shall inquire diligently, and if the witness is a false witness and has accused his brother falsely,
19 then you shall do to him as he had meant to do to his brother; so you shall purge the evil from the midst of you.
20 And the rest shall hear, and fear, and shall never again commit any such evil among you.
21 Your eye shall not pity; it shall be life for life, eye for eye, tooth for tooth, hand for hand, foot for foot.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.