There, Matheson primarily taught constitutional law, criminal law, and civil procedure. Matheson was also extensively involved in law administration and law reform efforts, serving as a vice-chair of the Utah Constitutional Revision Committee, a chair of the Utah Supreme Court Advisory Committee on the Rules of Evidence, and a member of the Utah State Bar Commission.
There, Matheson primarily instructed in constitutional law, criminal law, and civil procedure. Matheson was also deeply involved in law governance and law reform initiatives, holding positions such as vice-chair of the Utah Constitutional Revision Committee, chair of the Utah Supreme Court Advisory Committee on the Rules of Evidence, and member of the Utah State Bar Commission.