Using elements of science, wonder and forensic analysis, you'll be able to decipher those messages that before would have remained invisible. Below, we explore the top seven document alteration techniques detected by handwriting experts and the forensic methods used to uncover them Erasures are one of the most common alteration techniques, where the original writing or print is physically removed There are two primary types: Place the paper writing side down on a sleeping zombie’s forehead, and then press lightly with your fingers Done right, the zombie’s dead skin should fill in the writing marks, allowing you to easily read what was written, oh, so long ago
It worked for the dude Text that doesn't suit the criminal's needs may simply be erased using a rubber eraser, a knife point or other sharp instrument, sandpaper, or even a fingernail — anything that scrapes or rubs away unwanted marks. Close examination of a questioned document sometimes reveals _, _, or_ in the paper that are not in a sequence that is consistent with the natural preparation of the document Charred documents can also be deciphered by reflecting light off the paper’s surface at different angles in order to contrast the writing against the burned background. The evaluation was carried out through the use of a variety of writing instruments, inks and printing methods Because an impression is transferred from the primary page to several pages below, the first step is to use side lighting
This technique can reveal indentations left by the original writing, even if it has been written over or erased Learn about the essential forensic techniques used to identify and expose forgery in questioned documents.
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