Questioned document analysis typically involves examination of handwriting from a document to known writing samples in an attempt to determine the source of the handwriting or authenticity of the document. It can also involve other aspects of document authenticity, including determination of counterfeit items, ink analysis, and copier and printer features.
The Scientific Analysis Bureau provides examination of counterfeit money and other documents (i.e. driver’s licenses, passports, et al.) as well as handwriting analysis and comparisons to determine authorship of questioned writing samples. This analysis is provides at the Central laboratory.