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).


I can not begin to express my gratitude on how you managed and handled my case. You are quite the professional!!! When I began researching Forensic Document Examiners, I had no idea what to expect or what it entailed. I knew from the moment that we first spoke that there was no doubt I was going to retain your services. Your direction, honesty, attention to detail and professionalism sealed the deal. The turn around time was astounding (less than (5) days including a (3) day holiday weekend) even doctors and lawyers don’t do that anymore! I will be actively recommending you to everyone I know and even those that I don’t. The final product/report that you produced was so impressive that I found myself reading it over and over again in sheer delight. Mark, it was an absolute pleasure working with you and I look forward to any and all future endeavors.

My best,


Featured Expert

Mark Songer, FDE

Mark Songer is a former FBI Special Agent and FBI Forensic Examiner who specializes in forensic handwriting and document examination. He is frequently retained to investigate matters involving wills, checks, contracts, deeds, account ledgers, medical records, and autograph authentication.

While at the FBI, Mark instructed law enforcement officers and civilian examiners in handwriting identification as well as evidence collection procedures. He also developed and implemented Criminal Justice programs at several institutions of higher learning, including the University of California and La Sierra University.

Mark served in both the U.S. Marine Corps and U.S.Army and is a court qualified expert in the field of Forensic Document Examinations and Crime Scene Reconstruction.