Rule 11-701 NMRA
Rule 11-701. 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 11-702 NMRA.