Questioned and standard material
The source, condition and time relationship of questioned writing and comparison standards need to be identified before comparison.
Graphic gesture and writing
Handwriting examination based on suitable standards and responsible comparison.
The comparison requires understanding of questioned material, suitable standards, quality, origin and the limits of the available images or originals.
Comparative method
The examination considers graphic characteristics in context and does not infer authorship from an isolated resemblance.
Limitations
Copies, low resolution, scale changes, few standards or lack of originals may limit the possible technical reading.
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