chapter 19 of 34 (21 verses.)

Deuteronomy 19:19

[If the witness lied,] then you, 😇, [can] do to him whatever damage he schemed to do his brother [human].
That's how you eradicate evil from your [community].

Note: This verse doesn't demand that disciples of Christ participate in violent retribution.
The verse allows avengers to punish false witnesses, if the avenger so chooses, which, human nature being what it is, the avenger probably will.

Complete Jewish Bible (Sacred Name Version)	CJB-SN	you are to do to him what he intended to do to his brother. In this way, you will put an end to such wickedness among you.
New International Version (Sacred Name)	NIV-SR	then do to him as he intended to do to his brother. You must purge the evil from among you.
New International Readers Version (Sacred Name)	NIRV-SN	So do to the lying witness what he tried to do to the other person. Get rid of that evil person.
New Living Translation (Sacred Name Version)	NLT-SN	the accuser will receive the punishment intended for the accused. In this way, you will cleanse such evil from among you.
New Revised Standard (Sacred Name Edition)	NRSV-SN	then you shall do to the false witness just as the false witness had meant to do to the other. So you shall purge the evil from your midst.
The Message (Sacred Name Version)	MSG-SN	give him the same medicine he intended for the other party. Clean the polluting evil from your company.
Good News Translation (Sacred Name)	GNT-SN	you are to receive the punishment the accused would have received. In this way your nation will get rid of this evil.
New American Standard (Sacred Name Bible)	NASB-SN	then you shall do to him just as he had intended to do to his brother. Thus you shall purge the evil from among you.
King James Version (unedited)	KJV	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.