Signature Verification - Expert Receives High Marks for Presentation Expert Article

In October 2015, forensic document examiner, Mark Songer delivered an informational presentation on signature verification to the election workers in El Paso County, Colorado.

This letter from Liz Olson, the Election Manager for the El Paso County Clerk & Recorder’s Office, thanks Mark for his efforts.

Download Letter in PDF

Document Analysis Casework

Forensic examiners at Robson Forensic conduct investigations to provide evidence about suspicious or questioned documents using a variety of scientific principles and methods. Examiners inspect documents for the presence of alterations, obliterations, paper inconsistencies, and other signs of tampering. Through the course of the analysis, examiners can often reach a scientific determination of document origin and authenticity. For more information, visit our Document Analysis practice page

Featured Expert

Mark Songer, Forensic Document Examiner

Mark Songer, M.S.F.S.

Forensic Document Examiner
Mark Songer is a court qualified expert in Forensic Document Examinations. He is a former FBI Special Agent (GS-1811) and FBI Document Analyst (GS-1397) with over 30 years of law enforcement and… read more.


View All Articles

Client Referral - Letter of Gratitude

By Mark Songer
Expert Article

This document contains an unsolicited letter of gratitude from one of Mark’s many satisfied clients. In this case Mark was retained to perform a Questioned Document Examination (QDE). Mark, I…

Forensic Handwriting Analysis

By Mark Songer
Expert Article

  In this article, the forensic document examiners at Robson Forensic introduce the science of forensic handwriting analysis. They discuss the steps that a forensic document…

Living Trust Verification - Expert Receives “Thank You” from Client

By Mark Songer
Expert Article

This document is a letter that Mark Songer received from a client, thanking him for the impressive work he did in verifying the authenticity of living trust document. Thank you for your assistance in…