- At AAU we use scientific principles in our field. Submitted
signatures and or
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- items are examined with regard to its writing surface, writing instrument,
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- ink comparisons and area measurements. Our examinations are conducted
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- using ultraviolet and infrared lighting as well as using a stereoscopic
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- microscope. We consider cases on contracts, wills, deeds, bank checks,
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- leases, applications, anonymous letters, etc., for signatures, handwriting,
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- handprinting, numerals, writing instruments, typewriter typefaces etc.
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- It is true that in certain cases, not all of the above scientific
procedures are
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- required. A significant difference between legal questioned document work
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- and autograph-historical documents are how exemplars are obtained. In Q.D.
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- cases, forensic document examiners obtain samples from the attorney-client
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- or adversary. The written evidence can be either requested (taken personally
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- by the examiner) or collected (documents previously written). It is imperative
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- that the examiner ascertain the integrity of these samples to conclude like or
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- different authors.
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