Experienced Forensic Scientists
With A Passion For Answers

Proudly Certified by the American Board of Forensic Document Examiners

For over a hundred years the courts have relied upon Handwriting Experts to resolve questions of signature authorship. Simultaneously, documents have evolved with the rise and availability of digital technologies, so even in the 21st Century, documents are still a crucial part of most of our lives.

When your case hinges on determining how or by whom a document was created, it’s crucial that you consult a Forensic Document Examiner who has the training,  knowledge, skills, and abilities to handle each and every facet of a document, as it is only through a comprehensive examination that you can reach the truth.

KDX Forensic Consulting has over a decade of experience in Forensic Document Examination work on behalf of the United States Federal Government, Law Enforcement, and Private Sector clientele. While we’re located in Chicago, KDX was founded to provide comprehensive, reliable Forensic Document Examination services to clients regardless of locale. With that in mind we have specially designed our process to provide the same high-quality services you expect, with quick turnaround times to clients all around the world.

Kevin P. Kulbacki, D-ABFDE

CEO of KDX Forensic Consulting, LLC

Mr. Kulbacki is a Forensic Document Examiner and Handwriting Expert bringing a decade of Forensic Document Examination expertise to KDX. His education and training include a Bachelors in Forensic Science from the University of Central Florida in 2011, a Masters in Forensic Science from the University of Florida in 2014, and formal training in Forensic Document Examination from industry expert John Paul Osborn, owner of Osborn & Son (the oldest Forensic Document Examination laboratory in the U.S.) where he completed his two-year, full time apprenticeship in Forensic Document Examination in accordance with the SWGDOC Standard for the Minimum Training for Forensic Document Examiners in 2014.

Mr. Kulbacki is also certified as a Diplomate of the American Board of Forensic Document Examiners (D-ABFDE), and has worked as a Senior Criminalist in Questioned Documents for the South Carolina Law Enforcement Division (SLED), where he aided investigations into anonymous notes, threatening manifestos, and fraud. Mr. Kulbacki has also worked as a Forensic Document Examiner for the Internal Revenue Service’s Criminal Investigation Division’s National Forensic Laboratory, where he aided investigations into fraud, identity theft, and public corruption.

In addition to his extensive experience as a Forensic Document Examiner, Mr. Kulbacki is an active member of the Forensic Document Examination community participating in standards development and professional organizations, leading independent research, and serving as a lecturer for various companies and universities around the world.

Standards Development Experience

  • OSAC Logo

    Member – Forensic Document Examination Subcommittee

  • ASB Logo

    Chairman – Forensic Document Examination Consensus Body

Mr. Kulbacki was selected as a Voting Member of the Organization of Scientific Area Committees for Forensic Science (OSAC) Forensic Document Examination Subcommittee in 2016. As a Member of the Subcommittee, Mr. Kulbacki actively participated in the development and updating of Forensic Document Examination Standards including a specific focus on Forensic Document Examination Training Requirements.

Mr. Kulbacki has also been a Voting Member of the AAFS Academy Standards Board (ASB) Forensic Document Examination Consensus Body since 2016. As a Voting Member, Mr. Kulbacki has actively participated in the further development and vetting of Forensic Document Examination Standards including serving as the Chair of the Working Group leading the Standard for the Examination of Handwritten Items. In 2021, Mr. Kulbacki was elected to be the Chairman of the ASB Forensic Document Examination Consensus Body.

Professional Affiliations

  • ASQDE Logo

    American Society of Questioned Document Examiners (ASQDE)


  • ABFDE Logo

    American Board of Forensic Document Examiners (ABFDE)


  • AAFS Logo

    American Academy of Forensic Sciences (AAFS)

    Member – Questioned Documents

Independent Research

Forensic Document Examination Testimony Database

Forensic Document Examination has long been accepted as an expertise by courts at all levels in the United States and beyond.  With that being said, it is important for us as experts to be able to demonstrate that fact when challenges are presented in court.

As part of our research efforts, KDX Forensics maintains the comprehensive Forensic Document Examination Testimony Database.  The database contains over 3,400 testimonies involving Forensic Document Examination in the United States since 1990.

Access to the Forensic Document Examination Testimony Database is available upon request to participating Forensic Document Examiners.  If you are a Forensic Document Examiner and are interested in participating in the Forensic Document Examination Testimony Database, please contact us for more information.

Digital Signature Authentication Technologies

Over the course of the last decade, there has been an increasing push to move to a paperless world. This movement has only been furthered by the increasingly digital and remote work environment.

One of the technologies being leveraged by businesses to aid in this effort is Digitally Captured Signatures.  Unlike click to sign options, Digitally Captured Signatures are forensically reliable signatures that can be examined by qualified Forensic Document Examiners.

KDX is among the leading Forensic Document Examination firms for the examination of Digitally Captured Signatures and is currently leading research into Automated Digital Signature Authentication Technologies with international partners.

3D Profilometry of Intersections for Line Sequencing

While a document might seem like just a piece of paper, they routinely are created using multiple different materials.  Just think, even a contract may involve at least the presence of toner and writing pen ink.

When documents come into question, it may become important to determine the order in which the various portions of the document were created.  For example, whether or not a signature was placed on a document before a printed paragraph.

We at KDX Forensics are currently testing advanced technology known as 3D Profilometry for the examination of the intersections of various document technologies using technology created by Foster+Freeman.  As part of this study, we are documenting the characteristics of the intersections of numerous technologies in various sequences to determine what can and cannot be said based on the evidence seen.

As Seen On

Let us help you find answers

Schedule a free, no pressure consultation today so we can figure out how to best serve you.

“The team at KDX was phenomenal to work with. We really appreciated how quickly they were able to provide us a report that helped us obtain a settlement.”

Prior KDX Client
Kevin P. Kulbacki, D-ABFDE
CEO, Forensic Document Examiner

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