Forensic research in the field of visualization of dactyloscopic traces

Abstract

In dactyloscopy, great importance is attached to the search for new solutions and further development of the methods used to reveal fingerprints. In most cases, fingerprint marks are not visible to the naked eye and require the use of an appropriate visualization technique. At the scene, policemen - forensics technicians - use dactyloscopic powders for this purpose, the effectiveness of which depends on the type of substrate and the time that elapses from the moment of leaving traces. In practice, powders are used to reveal traces on large, smooth surfaces and those that cannot be collected in their entirety. During procedural activities, police officers aim to collect entire items that may be related to the crime, and then in laboratory conditions they reveal the traces present on them. It is in the forensic laboratory that a multifaceted analysis of the collected evidence is possible, as well as the selection of an effective method of revealing traces. An important element is also the ability to conduct a comprehensive analysis in order to obtain the maximum amount of information from the research material. These activities require knowledge, experience and close cooperation of experts when using effective research methods, as well as the ability to decide on the sequence of sampling and analysis.