Oregon Revised Statutes Procedure in Criminal Matters Generally § 136.060

(1) Jointly charged defendants shall be tried jointly unless the court concludes before trial that it is clearly inappropriate to do so and orders that a defendant be tried separately. In reaching its conclusion the court shall strongly consider the victim's interest in a joint trial.

(2) In ruling on a motion by a defendant for severance, the court may order the prosecution to deliver to the court for inspection in camera any statements or confessions made by any defendant that the prosecution intends to introduce in evidence at the trial.