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Del. Unif. R. Evid. 705

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Rule 705 Disclosing the Facts or Data Underlying an Expert’s Opinion

Article VII: Opinions and Expert Testimony

Rule Text

(a) Disclosure of Facts and Data Underlying an Expert Opinion. Unless the court orders otherwise, an expert may state an opinion — and give the reasons for it — without first testifying to the underlying facts or data. But the expert may be required to disclose those facts or data on cross-examination.

(b) Objection. An adverse party may object to the testimony of an expert on the ground that the expert does not have a sufficient basis for expressing an opinion. The adverse party may, before the witness gives an opinion, be allowed to conduct a voir dire examination directed to the underlying facts or data on which the opinion is based.

Rule 705 Disclosing the Facts or Data Underlying an Expert’s Opinion

Rule Text

Plain-English Summary (for reference only — not a substitute for the rule text above)

Committee Notes

Disclaimer