It is quite obvious that the rates of crimes are increasing day by day in all societies in the world. Criminal investigation is the duty of police department. To serve the interests of justice it works with forensic scientists.The purpose of this paper is to design a system that will reduce the paper work with ease of acquiring the suspect’s information and hence enhancing the fingerprints for efficient matching to derive at the conclusion whether the suspect is new criminal or already being convicted.

Keywords : forensic, criminal, policestation, optical fingerprint scanner, preprocessing, matching.