IDENTIFICATION OF WRITING INSTRUMENTS
The effect of the writing instrument upon writing as a means of identifying it may have an important bearing as evidence in a case of disputed writing. Pencils are used for so many different purposes that is inevitable that pencil writing is produced by wearing of cautious succession of small particles of graphite which cling to or become imbedded in the fibre of the paper. Every part of every stroke of disputed pencil writing will be carefully examined.
Enlargement of pen points, broad stub: Upon close examination nearly all writings such a pen will show at some place the marks of the two points. As a pen becomes old or is injured the nibs become separated or of unequal length or width & the pen” scratch” or sticks into the paper.