Eyewitness identification accuracy of offenders (persons who committed a crime) is generally unreliable. In this study, we implemented a training approach to examine the impact of a brief criminal law training session on the identification accuracy of eyewitnesses viewing a simulated violent altercation between two males. Participants provided with prior training on how to appropriately apply specific criminal law definitions relevant to a violent altercation (assault and self-defense provisions) were more accurate in their identifications of the offender when compared to participants provided with irrelevant training (a riot and the unlawful assembly of a riot), and participants provided with no training, when observing the same violent altercation. Potential implications and limitations are discussed.