Oregon Revised Statutes Evidence and Witnesses § 44.520

(1) No person connected with, employed by or engaged in any medium of communication to the public shall be required by a legislative, executive or judicial officer or body, or any other authority having power to compel testimony or the production of evidence, to disclose, by subpoena or otherwise:

(2) No papers, effects or work premises of a person connected with, employed by or engaged in any medium of communication to the public shall be subject to a search by a legislative, executive or judicial officer or body, or any other authority having power to compel the production of evidence, by search warrant or otherwise. The provisions of this subsection, however, shall not apply where probable cause exists to believe that the person has committed, is committing or is about to commit a crime.