Deuteronomy 19:18

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

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

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

and the judges have searched diligently, and lo, the witness `is' a false witness, a falsehood he hath testified against his brother:

The judges shall investigate thoroughly, and if the witness is proven to be a liar who has falsely accused his brother,