Opinion Testimony by Lay Witnesses

If a witness is not testifying as an expert, testimony in the form of an opinion 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. [Amended March 2, 1987, effective October 1, 1987; amended April 17, 2000, effective December 1, 2000; amended effective May 29, 2003 to prohibit opinion testimony under