Deuteronomy 17:7

The hands of the witnesses] This regulation, by throwing the responsibility of the execution upon the witnesses, would act as a safeguard against false evidence: see on Leviticus 24:14.

8-13. Difficult cases are to be referred to a supreme court of judicature, consisting of the priests and the chief magistrate, whose decision is final. This court is to sit at the central sanctuary: see 2 Chronicles 19:8.