Forensic engineers are faced with two potentially difficult problems: One is to do a technical analysis with limited data and the other is explaining the complex results of the analysis to a lay jury. Computer graphics can be used to enhance both the analytical and presentation aspects of these problems. This paper deals with the use of vehicular accident reconstruction examples to illustrate the potential of computer graphics for use by forensic engineers. The paper stresses how a predominantly analytical tool such as the computer can be used effectively as a demonstrative tool. Using this approach, potential problems of court acceptance of the computer may be mitigated or eliminated.