In light of the recent Court of Appeals opinion State v. Moore, this post is a follow-up to the 2018 blog post State v. Fincher: No Foundation Required for DRE Testimony by my colleague Shea Denning.
Rule 702 of the North Carolina Rules of Evidence governs the admissibility of expert testimony. Rule 702(a) requires the proponent to show that the expert testimony is based on sufficient facts or data (Rule 702(a)(1)), the product of reliable principles and methods (Rule 702(a)(2)), and the result of the witness reliably applying the principles and methods to the facts of the case (Rule 702(a)(3)). That said, there are circumstances where the proponent is not required to make these showings. Rule 702(a1)(2) permits a witness to give expert testimony about whether a person was impaired, and by what category of impairing substance, “notwithstanding any other provision of law” when the witness holds a current certification as a Drug Recognition Expert (DRE). In a case of first impression, the Court of Appeals held that the proponent of expert testimony by a witness properly certified as a DRE must nonetheless meet the showing required by Rule 702(a)(3) that the testimony is the result of the witness reliably applying the principles and methods to the facts of the case. Read on for more detail.