Document Analysis

In addition to his work as a Forensic Document Examiner with Robson Forensic, Mark Songer also trains bipartisan election officials in Colorado on ballot signature verification. He explains in this interview with NBC 9News in Denver that although a person’s signature can change over time, this does not mean their ballot will be rejected. Mark shows trainees key factors to analyze when validating a signature which remain consistent over time and across various mediums. He also shares statistics about the percentage of ballots that were flagged in the 2018 election, and provides insight to the safety and validity of mail-in voting.

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.

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

In this article, forensic document examiner, Mark Songer discusses the role of document analysis in elder care disputes. He provides relevant data on the scope of the problem and outlines his involvement in two such cases.

In this article, Forensic Document Examiner, Mark Songer discusses the role of document examiners within the context of construction disputes. The article highlights examples of “cut and paste” forgeries and provides background into the processes and techniques utilized as part of the investigation.


Mark conducts document analysis involving a wide range of cases stemming from various industries. Please contact Mark to discuss your case and how he can assist.

In this article, Forensic Document Examiner, Mark Songer provides an overview of the cases where forensic document examination can be applied, the techniques and technologies used, and standards that exist in the field.

Forensic Document Examiner, Mark Songer, was interviewed by Dr. Alok Patel for the PBS podcast NOVA Now, to discuss handwriting verification and the science applied to ensure the validity of ballots cast by mail. Mr. Songer explains the principles of handwriting analysis as applied to signature verification and the process for analyzing signatures on mail-in ballots. He also shares his experience training bipartisan election judges in the forensic evaluation of signatures for the state of Colorado.

In this article, forensic document examiner, Mark Songer D-ABFE, CFC, discusses some of the methods used by identity thieves to acquire personal data and strategies that individuals can use to guard against identity theft.

In this article, forensic document examiner, Mark Songer provides an overview of forensic document examination. Topics discussed include training and qualifications for forensic document examiners as well as the various methods used to exam differing projects, such as signatures, checks, computer and type generated documents, as well as obliterated writing.

This article features an unsolicited letter of recommendation received from a client who worked closely with Questioned Document Examiner, Mark Songer.


In this contentious divorce suit, Mark was tasked with reviewing a document to determine its authenticity. More specifically, Mark sought to determine if the document produced by the defendant was written by the plaintiff or if the document was actually written by the defendant in an attempt to incriminate the plaintiff.


Text from our client’s letter can be found below and a pdf copy can be accessed in the ‘details’ section of this page.

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).

This article provides an introduction to the processes utilized by forensic experts performing Questioned Document Examinations.

In this document, forensic document examiner, Mark Songer, provides an introduction to the science of forensic handwriting analysis. He discusses the steps that a forensic document examiner follows, including analysis, comparison, and evaluation. He also provides a brief example, comparing two handwriting samples, drawing attention to some of the key differences that a handwriting analyst may utilize in his analysis.