Section 415.251 - Jurisdiction of delinquency proceedings(1) The circuit court shall have original jurisdiction of delinquency proceedings, and any court with jurisdiction is authorized to make all necessary or proper orders to carry out the purposes of ORS 415.203 to 415.430.(2) The venue of delinquency proceedings and proceedings under ORS 415.203 to 415.430 against a coordinated care organization shall be in the Circuit Court for Marion County.(3) At any time after the commencement of a delinquency proceeding or a proceeding under ORS 415.203 to 415.430, the court may issue an order changing the venue of the proceeding on motion of the Oregon Health Authority or other interested person if the court finds the proceedings may be more economically and efficiently conducted thereby.