Document ID: ./input/supremecourt_opinions/opinions/boundvolumes/529bv.pdf
Page Number: 1177.0

Date/Time: 11-02-00 08:45:59
Job: 529RUL

Unit: U3EV

Pagination Table: RULES1

RULES OF EVIDENCE

1195

those opinions or inferences which are (a) rationally based
on the perception of the witness, and (b) helpful to a clear
understanding of the witness’ testimony or the determina-
tion of a fact in issue, and (c) not based on scientiﬁc, technical,
or other specialized knowledge within the scope of Rule 702.

Rule 702. Testimony by experts.

If scientiﬁc, technical, or other specialized knowledge will
assist the trier of fact to understand the evidence or to deter-
mine a fact in issue, a witness qualiﬁed as an expert by
knowledge, skill, experience, training, or education, may tes-
tify thereto in the form of an opinion or otherwise, if (1)
the testimony is based upon sufﬁcient facts or data, (2) the
testimony is the product of reliable principles and methods,
and (3) the witness has applied the principles and methods
reliably to the facts of the case.

Rule 703. Bases of opinion testimony by experts.

The facts or data in the particular case upon which an ex-
pert bases an opinion or inference may be those perceived
by or made known to the expert at or before the hear-
ing.
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 un-
less the court determines that their probative value in assist-
ing the jury to evaluate the expert’s opinion substantially
outweighs their prejudicial effect.

Rule 803. Hearsay exceptions; availability of declarant

immaterial.

The following are not excluded by the hearsay rule, even

though the declarant is available as a witness:

.

.

.

.

.

(6) Records of regularly conducted activ ity.—A
memorandum, report, record, or data compilation, in any