The facts or data in the 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 the particular field in forming opinions or inferences upon the subject, the facts or data need not be admissible in evidence in order for the opinion or inference to be admitted. Facts or data that are otherwise inadmissible shall not be disclosed to the jury by the proponent of the opinion or inference unless the court determines that their probative value in assisting the jury to evaluate the expert’s opinion substantially outweighs their prejudicial effect.
(As amended Mar. 2, 1987, eff. Oct. 1, 1987; Apr. 17, 2000, eff. Dec. 1, 2000.)
added in current removed in current
Compared to current version (2025).
The facts or data in the particular case upon which aAn expert may 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 rean facts or data in the case that the expert has been made aware of or personablly relied upon byobserved. If experts in the particular field in forming opinions or inferences upwould reasonably rely on those kinds of facts or data in forming an opinion on the subject, the facts or datay need not be admissible in evidence in order for the opinion or inference to be admitted. FBut if the facts or data that arewould otherwise be inadmissible shall not be disclosed to the jury by the proponent of the opinion or inference unless the court determines that, the proponent of the opinion may disclose them to the jury only if their probative value in assisthelping the jury to evaluate the expert’s opinion substantially outweighs their prejudicial effect.
(As amended Mar. 2, 1987, eff. Oct. 1, 1987; Apr. 17, 2000, eff. Dec. 1, 2000; Apr. 26, 2011, eff. Dec. 1, 2011.)