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A Fingerprint Forensic Tool for Criminal Investigations
Abstract
In this chapter, the authors describe the software module developed in the context of a joint research work between the Department of Electrical and Electronic Engineering of the University of Cagliari, and Raggruppamento Carabinieri Investigazioni Scientifiche (Scientific Investigation Office) of the “Arma dei Carabinieri”, that is the militia maintained by the Italian government for police duties. Aim of the joint research work has been the study of state of the art on methods and algorithms for automatic analysis of latent fingerprint images and for fake fingerprints identification. The result of this research has been the development of a prototype software tool, whose aim is to help the human expert in analyzing latent fingerprints collected during investigations. This software exhibits several features which are not present in standard AFIS tools. Advanced modules for fingerprint image processing, comparison among fingerprints, and, finally, a module for discriminating fake latent fingerprints from “live” ones, characterize this tool. With the term “fake latent fingerprints”, we mean latent fingerprint images released on the crime scene by a “stamp” reproducing a certain true fingerprint.
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