This script for a slide and audiocassette presentation/training module is designed for photographers in the criminal justice system. The instructions for using the three-dimensional evidence mapping cube may also be relevant to those in the industrial technology field. Discussion first centers on illustrating (by photography) two-dimensional evidence. Next, the evidence mapping cube (EMC) is proposed as a way to provide a scale-reference in the three primary dimensions. Proper arrangement of the EMC and proper illumination of the subject are emphasized and described. The order of slides is included for reference. (YLB)