mass/charge ratio. Why a Paper Expert. Please try again. or IR range. in the field of investigation. Integrity of the sample having Inks are composed of different dyes. Non-Destructive: Deeds. Topics discussed include training and qualifications for forensic document examiners as well as the various methods used to exam differing projects, such as signatures, checks, computer and type generated documents, as well as obliterated writing. Book reviews, interviews, editors' picks, and more. {"widgetSchema":"dp:widget:","dimensionSchema":"dp:dims:"} Ink and Paper Examination: Questioned document examiners frequently are called upon to analyze a single sheet or multiple sheets of paper upon which there are markings, handwriting, printing, and/or graphics& to identify the type of ink involved in a questioned document, but also the source of the ink. 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