ORS 14.050: Actions that are to be brought where cause arose.

Actions for the following causes shall be commenced and tried in the county where the cause, or some part thereof, arose: (1) For the recovery of a penalty or forfeiture imposed by statute, except that when it is imposed for an offense committed on a lake, river or other stream of water, situated in two or more counties, the action may be commenced and tried in any county bordering on such lake, river or stream, and opposite the place where the offense was committed; (2) Against a public officer or person specially appointed to execute the duties of the public officer for an act done by the officer or person in virtue of the office of the public officer; or against a person who, by the command of the public officer, or in aid of the public officer, shall do anything touching the duties of such officer.