Rule 703. Basis of opinion testimony by experts.
The facts or data in a particular case upon which an expert bases an opinion or inference may be those perceived by or made known to the expert at or before the hearing. If of a type reasonably relied upon by experts in a particular field in forming opinions or inferences upon the subject, the facts or data need not be admissible in evidence.
History: Ad. Sup. Ct. Ord. 12729, Dec. 29, 1976, eff. July 1, 1977; amd. Sup. Ct. Ord. June 7, 1990, eff. June 7, 1990.
Structure Montana Code Annotated
Chapter 10. Montana Rules of Evidence
Part Article VII. Opinions and Expert Testimony
Rule 701. Opinion testimony by lay witnesses
Rule 702. Testimony by experts
Rule 703. Basis of opinion testimony by experts
Rule 704. Opinions on ultimate issue
Rule 705. Disclosure of facts or data underlying expert opinion