Documents have played a crucial part in our day-to-day life for ages. Documents contain vital information which can have evidentiary value that can link a criminal to a crime. Sometimes, such documents get destroyed either intentionally or accidentally by means of fre, water, moisture and humidity, dyes and paints, etc. Many a times, criminals try to destroy the valuable documents by setting them on fre in order to hide their criminal activity having wrong intention. Charred document is one such case where the documents under excessive heat become carbonized, brittle and fragile.Te most perplexing problem faced in the area of arson investigation is the handling and preservation of charred documents which ultimately render the decipherment of contents written on it. Tis is due to the obvious reason, that is, its extreme fragile
and brittle nature. Researches have also pointed towards this huge challenge for questioned document examiners to potentially preserve the charred documents for further investigation. Hence, the present paper aims to highlight the ancient and the recent advanced preservation and decipherment techniques of charred documents to summarize it with their pros and cons, so that the need to enhance and develop a better new technique of preservation can be looked into.