ABSTRACT

These are three-dimensional impressions that result when a hard object (e.g., tool-screwdriver, hammer, or wire cutters, or teeth) comes into contact with a softer substance. The resulting marks may yield both class and individualizing characteristics of the object that made them. Bite marks may be associated with assaults, sexual assault, gags or items forced into a victim’s mouth, or food eaten at the scene. Toolmarks may be present at locations of any forced entry. An impression evidence notes worksheet is provided in Appendix G that will assist in keeping impression evidence recovery efforts organized and properly documented.