If the thief is not found, the owner of the house must appear before the judges to determine whether he has taken his neighbor’s property.
KJV
If the thief be not found, then the master of the house shall be brought unto the judges, [to see] whether he have put his hand unto his neighbour’s goods.
ASV
If the thief be not found, then the master of the house shall come near unto God, to see whether he have not put his hand unto his neighbor’s goods.