Many have specialized training in computer forensics; language; forensic accounting; and technical surveillance, such as through wiretaps, bugs, and cameras. Document analysis, a very broad area in the field of forensics, is the exami- nation and comparison of questioned documents with known material.Scientific Crime Detection Laboratory in Chicago, IL, began in. 1929. This extremely visual PowerPoint covers questioned documents in forensics with major categories of forgeries and counterfeits. Analysis refers to the interpretation of the recovered data and placement of it in a logical and useful format (e.g. Any signature, handwriting, typewriting, or other written mark whose source or authenticity is in dispute or uncertain. Forensic accounting is simply defined as the intersection of accounting and the law.