Idaho Code § 31-416: Transfer of civil, criminal and probate matters.

All civil and criminal actions and special proceedings, and all records and files pertaining thereto, pending in the formerly existing county, shall be transferred to the office of the clerk of the court of the consolidated county, without further charge, likewise all civil and criminal actions and all unsettled estates, pending in the probate court of the formerly existing county, together with all records and files pertaining to the same, shall be transferred to the probate court of the consolidated county, without additional charge.