{"data":{"id":"us-or/ors-40.430","jurisdiction":"us-or","citation":"ORS 40.430","heading":"Rule 706. Impeachment of expert witness by learned treatise.","body":"Upon cross-examination, an expert witness may be questioned concerning statements contained in a published treatise, periodical or pamphlet on a subject of history, medicine or other science or art if the treatise, periodical or pamphlet is established as a reliable authority. A treatise, periodical or pamphlet may be established as a reliable authority by the testimony or admission of the witness, by other expert testimony or by judicial notice. Statements contained in a treatise, periodical or pamphlet established as a reliable authority may be used for purposes of impeachment but may not be introduced as substantive evidence. [1999 c.85 §2]\nHEARSAY","path":["01 - Courts, Oregon Rules of Civil Procedure","4. Evidence and Witnesses","Chapter 40 — Evidence Code"],"source_url":"https://www.oregonlegislature.gov/bills_laws/ors/ors040.html","current_through":"2025 Edition","vintage":"","retrieved_at":"2026-09-03T23:50:10Z","sha256":"d65ea17cd6451c77eaef7425a7b829df1ab3acffd95b52886358a380c30cf478","source_id":"us-or","stale":false,"prev":"us-or/ors-40.425","next":"us-or/ors-40.450"},"notice":"GroundRules: Original legal text. Not legal advice."}