Montana Rules of Evidence R. 701
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Rule 701. Opinion testimony by lay witnesses.
Terms Used In Montana Rules of Evidence R
- Testimony: Evidence presented orally by witnesses during trials or before grand juries.
If the witness is not testifying as an expert, the witness’ testimony in the form of opinions or inferences is limited to 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 determination of a fact in issue.