Oregon Constitution Art. VII (Original) § 12

The County Court shall have the jurisdiction pertaining to Probate Courts, and boards of County Commissioners, and such other powers, and duties, and such civil Jurisdiction, not exceeding the amount or value of five hundred dollars, and such criminal jurisdiction not extending to death or imprisonment in the penitentiary, as may be prescribed by law. -- But the Legislative Assembly may provide for the election of Two Commissioners to sit with the County Judge whilst transacting County business, in any, or all of the Counties, or may provide a seperate (sic) board for transacting such business.