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An Evaluation of Some commonly used Methods for Visualization of Secret Writing

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Author Affiliations

  • 1* Institute of Forensic Science (Govt. of Maharashtra), RTM Nagpur University, Nagpur, MH, INDIA

Res. J. Forensic Sci., Volume 1, Issue (3), Pages 1-4, May,29 (2013)

Abstract

Secret writing is the art of covered or hidden writing. The art of secret writing is intended to make a message unreadable by at Third party but does not hide the existence of the secret communication. This paper is intended as a technical introduction to secret writing for those unfamiliar with the field. The current research paper comprises of twenty seven samples which contained hidden messages written using some biological fluids (milk, saliva, and urine), chemical fluids (vinegar, saline and baking soda) and vegetable fluids (lemon, orange and onion juice). They were then visualized using physical method (UV lamp), by heat treatment, and by chemical method in a specific interval of time, examine from 1st day to 30th day after regular interval of five days.

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