Questioned Document Research by Document Examiners. Questioned Document Examination – Incognito Forensic Foundation Document examiners utilize medical principles of ink and handwriting analysis for examining the various kinds of questioned documents. Questioned Document research by document examiners includes handwriting assessment while the analysis of various other attributes of the questioned document. Signature & Handwriting Examination Handwriting and signature are unique up to a specific person. This makes it easy for document examiners to determine forgery or alterations. Document examiners been trained in handwriting and signature analysis are hence in a position to identify a forged handwriting/signature from an authentic one. Study ...