The Truthsayer and The Court: Expert Testimony on Credibility

The purpose of this Article is to analyze the admissibility of expert testimony on credibility. State v. Woodburn serves as a lens to focus on the broader issues. The primary issue is an examination of expert testimony on credibility in light of the Federal Rules of Evidence and their progeny. The Rules of Evidence mandate admission or exclusion of expert testimony based on certain criteria. How are these criteria applied to expert testimony on credibility? How should they be applied? The surprising survivability of other criteria discarded by the Rules is also considered.