CHY 183 Chapter Notes - Chapter 17: Toner, Fax, Nondestructive Testing
17 Dec 2016
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Document Summary
Questioned document: any object with handwriting or print whose source or authenticity is in doubt. Gathering documents of known authorship or origin is critical. Early stages of learning handwriting are characterized by the conscious effort to copy standard letter forms. Handwriting variations include angularity, slope, speed, pressure, letter and word spacing, relative dimensions, connections, pen movement, margins, insertions, and alignment. Spelling, punctuation, and phraseology can also individualize a writer. Must collect an adequate number of known writings (exemplars) Known writing should contain some of the words and letter combination present in the questioned document. Writing instrument and paper should be alike. Examiners may be called to compare a questioned document with test samples from a suspect machine. A side by side comparison is made between the questioned document and the printed exemplars to compare markings produced by the machine. Points of comparison include defect marks, fax machine headers, toners, toner application methods.
