Trace Evidence Analysis is the discipline of forensic science that deals with the minute transfers of materials that cannot be seen with the unaided eye. The handling and analysis of trace evidence requires care and specialized techniques. Trace evidence may provide a link between the victim and a suspect, a victim and a scene, or the suspect and a scene.The significance of trace evidence is often overlooked, however, in the absence of probative biological evidence, trace evidence may be the only source that can provide crucial investigative information.