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Indian Journal of Forensic Medicine and Pathology

Volume  14, Issue 3(Special Issue), July - September 2021, Pages 535-538


Original Article

Deciphering of secret written content written with various fluids
1Mahima, 2 Vikas Bhargav, 3Anjali Malik
1Student, 2Assistant Professor, Department of Forensic Science, Dyal Singh College, Karnal-132001, Haryana, India. 3Assistant Professor, Sharda University, Greater Noida-244001, Uttar Pradesh, India
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context: When a hidden or covered message is needed to be conveyed to someone, the skill of secret writing is used as a means of conveyance. It is incorporated to create content undecipherable by the other person even by not hiding the existence of the secret conveyance of the content. aims: The present study has been conducted with an approach of incorporating the secret handwriting on a blank paper using various household invisible inks and retrieved samples were assessed using various deciphering methods. materials & method: There are three different categories in which these invisible inks are classified. Invisible inks are fluids that are used for the same and do not come into sight unless it is revealed through any sort of process. These inks viz. revealed by heat, by any chemical reaction and those that are observed under UV light and iodine fuming method results: It was observed through analyzing the samples that, heating technique was the best for the secret messages created using biological fluids, as writing became irreversibly visible after the development. conclusions: The results of the study concluded that different physical and chemical methods proves to be an approach for deciphering the various messages written with invisible inks. key messages: Although the available methods for deciphering the secret written content are abundant nowadays but this task can also be done effectively with commonly available techniques.

Corresponding Author : Anjali Malik