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.)