Oregon Revised Statutes Procedure in Criminal Matters Generally § 132.410

An indictment, when found and indorsed, as provided in ORS 132.400 and 132.580, shall be filed with the clerk of the court, in whose office it shall remain as a public record. Upon being designated by the district attorney as confidential and until after the arrest of a defendant who has not been held to answer the charge, the indictment or any order or process in relation thereto shall not be inspected by any person other than the judge, the clerk of the court, the district attorney or a peace officer in the discharge of a duty concerning the indictment, order or process.