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Idaho Rules of Evidence Rule 701. Opinion Testimony by Lay Witnesses.

If a witness is not testifying as an expert, testimony in the form of an opinion or inference is limited to one that is:

(a)  rationally based on the witness's perception;

(b)  helpful to clearly understanding the witness's testimony or to determining a fact in issue; and

(c)  not based on scientific, technical, or other specialized knowledge within the scope of Rule 702.


(Adopted March 26, 2018, effective July 1, 2018.)


As the Third Branch of Government, we provide access to justice through the timely, fair, and impartial resolution of cases.


Members of the
Idaho Supreme Court

Chief Justice G Richard Bevan
Justice Robyn M. Brody
Justice John R. Stegner
Justice Gregory W. Moeller
Justice Colleen D. Zahn

Members of the
Idaho Court of Appeals

Chief Judge Jessica M. Lorello
Judge David W. Gratton
Judge Molly J Huskey



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