Other analytical instrumentation may be used where appropriate.Īnonymous notes and letters can make for frustrating cases for investigators. There are also electrostatic devices for the visualization of indentations and other features present on paper. Forensic document examination does not involve the employment of calligraphic or engrossing skills, nor does it involve a study of personality or character.Įquipment used in forensic document examination includes: microscopes and additional optical aids photographic and computer imaging devices, a wide variety of imaging materials adaptable for use with a variety of lighting methods, including those involving radiant energy in the ultraviolet, visible, infrared, and other regions of the electromagnetic spectrum. Handwriting includes cursive or script style writing, hand printing, signatures, numerals, and other written marks or signs. Other problems may involve the decipherment, restoration, or enhancement of obscured, deleted, or damaged parts of documents.įorensic document examination includes the expertise of handwriting identification. The forensic document examiner makes scientific examinations, comparisons, and analyses of documents in order to: 1) establish genuineness or non-genuineness, 2) reveal alterations, additions, or deletions, 3) identify or eliminate persons as the source of handwriting, 4) identify or eliminate the source of machine produced documents, 5) visualize other impressions, marks, or relevant evidence of any kind, and 6) write reports and give testimony. A document in a criminal matter is the only physical evidence that portrays thoughts. A document is a substrate with marks or symbols which convey thoughts. This area of forensic science is a broad field where both handwritten and machine produced documents are characterized and compared to determine facts about their origins. The Questioned Document Section of the Iowa DCI Criminalistics Laboratory provides a comprehensive range of document examinations and hand writing identification services to authorized agencies in the State of Iowa.
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