ER 705: DISCLOSURE OF FACTS OR DATA UNDERLYING EXPERT OPINION
The expert may testify in terms of opinion or inference and give reasons therefor without prior disclosure of the underlying facts or data, unless the judge requires otherwise. The expert may in any event be required to disclose the underlying facts or data on cross examination.
[Amended effective September 1, 1992.] Comment 705 [Deleted effective September 1, 2006.]