Rule 705 - Disclosure of Facts or Data Underlying Expert Opinion(a)Disclosure of Facts or Data. 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 court requires otherwise. The expert may in any event disclose on direct examination, or be required to disclose on cross-examination, the underlying facts or data, subject to subdivisions (b) and (c).(b)Admissibility. An adverse party may request a determination of whether the requirements of Rule 703 are satisfied before an expert offers an opinion or discloses facts or data.(c)Balancing Test - Limiting Instructions. When the underlying facts or data would be inadmissible in evidence for any purpose other than to explain or support the expert's opinion or inference, the court shall exclude the underlying facts or data if the danger that they will be used for an improper purpose outweighs their value as support for the expert's opinion. If the facts or data are disclosed before the jury, a limiting instruction by the court shall be given upon request.Added by SCO 364 effective 8/1/1979