ABSTRACT:
This article emphasis on the handling of different forms of tampered documents and the methods available for their treatment. The common types of Tampered documents encountered by the forensic experts are Alterations, Addition, Obliteration, erasures, invisible writings and Charred Documents. During the ancient period experiments were being performed to establish some methods of detection and decipherment of tampered documents. There were many pioneers who gave their contribution in the analysis and decipherment of tampered documents. The major emphasis was on Photographic and visual examination methods such as Filter, IR, UV Photographic methods. Very less research has been done on utilizing instrumentation techniques for detection and decipherment of tampered documents. There are various types of inks which are utilized for fraud and criminal purposes in which the use of invisible ink are increasing day by day .With the advancement of technology there are various analytical methods available for the identification of the source of data of a particular ink or paper. The major purpose of this article is to give information about the available methods for the decipherment of tampered documents including both-the common methods and advanced instrumentation techniques.