in a judicial or administrative proceeding, the person or group responsible for determining the facts relevant to resolving a controversy. It is the role of a jury in a jury trial, in a nonjury trial the judge sits both as a fact finder and as a trier of law; in administrative proceedings it may be a hearing officer or a hearing body. The term TRIER OF FACT generally denotes the same role. Source: Barron's Dictionary of Legal Terms, Steven H. Gifis, 5th Edition; © 2016