Study of Security Features of Bank Cheques and Credit Cards and Decipherment

Questioned documents are documents whose authenticity is suspicious or uncertain. Guilty people most of the time use to burn important documents to hide their criminal activities and intentions. This is usually achieved by exposing the document to fire with/without any accelerant. These burnt documents may be linked to a substantial act of forgery, fraud, ransoms or any other serious offence. Present work has been attempted to study experimentally, certain government/non-government documents of UAE such as bank cheques and bank credit cards for the effect of heat/fire on these documents and further how these charred documents can be subjected to decipherment of any meaningful matter. For this study the bank cheques and credit cards with pre-written matter by different types of writing instruments and inks were considered. At that point, the written by hand certifications were signed until the point that the works turned out to be halfway or totally undetectable. The roasted reports were then appropriately gathered and were analyzed under a projectina inspec-8 by utilizing diverse light sources (non-damaging sources, for example, UV, IR, Retro and so on and saw under different wavelengths. Results demonstrated that the works on these singed reports can be apparently improved which can be used for encouraging criminological examinations. The writings were comparatively more visible under diverse wavelengths of lights. The results were recorded through proper photographic techniques.