Fed. R. Evid. 703 — Bases of an Expert’s Opinion Testimony

Federal Rules of Evidence

Rule 703 — Bases of an Expert’s Opinion Testimony

Fed. R. Evid. 703

Rule703

ARTICLE VIIOPINIONS AND EXPERT TESTIMONY

CitationFed. R. Evid. 703

Fed. R. Evid. 703 (Bases of an Expert’s Opinion Testimony) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

Bluebook

Fed. R. Evid. 703.

Text

An expert may base an opinion on facts or data in the case that
the expert has been made aware of or personally observed. If ex-
perts in the particular field would reasonably rely on those kinds
of facts or data in forming an opinion on the subject, they need
not be admissible for the opinion to be admitted. But if the facts
or data would otherwise be inadmissible, the proponent of the
opinion may disclose them to the jury only if their probative
value in helping the jury evaluate the opinion substantially out-
weighs their prejudicial effect.

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An expert may base an opinion on facts or data in the case that
the expert has been made aware of or personally observed. If ex-
perts in the particular field would reasonably rely on those kinds
of facts or data in forming an opinion on the subject, they need
not be admissible for the opinion to be admitted. But if the facts
or data would otherwise be inadmissible, the proponent of the
opinion may disclose them to the jury only if their probative
value in helping the jury evaluate the opinion substantially out-
weighs their prejudicial effect.

Advisory Committee Notes

(As amended Mar. 2, 1987, eff. Oct. 1, 1987; Apr. 17, 2000, eff. Dec. 1, 2000; Apr. 26, 2011, eff. Dec. 1, 2011.)