Opinion Testimony by Lay Witnesses

If the witness is not testifying as an expert, the witness’s 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’s testimony or the determination of a fact in issue. (Added by SCO 364 effective August 1, 1979; amended by SCO 1522 effective October 15, 2003)