a.
To determine: The way to recover the original words that have been obliterated using a different ink.
Introduction: There arise specific alterations or changes that occur after the preparation of the documents.
b.
To determine: The way to recover the original words that have been obliterated by using a chemical erasure.
Introduction: A document is most commonly altered by using a rubber eraser, sandpaper, and blade or can be a knife. All these methods may damage the fibers of the paper.
c.
To determine: The way to recover the original content that was written using fluorescent ink.
Introduction: There are different ways by which the content in the document can be altered. Using a different type of inks, chemical erasures are two of the methods.
d.
To determine: The way to recover the original content that has been charred or burned.
Introduction: The authenticity of a particular document can be ascertained by a document examiner by examining handwriting as well as a typescript.
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Criminalistics: An Introduction to Forensic Science (12th Edition)
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