Tennessee’s Leading Forensic Handwriting Expert

Just A Few of Our Satisfied Clients

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Dianne Peterson, Certified & Court Qualified Handwriting Expert

“Forensic Document Examination is an established field of scientific study, as a means of identifying forgery and establishing the authenticity of documents in dispute.” Southeastern Association of Forensic Document Examiners.

Dianne Peterson is the owner and president of Forensic Document Investigations (FDI). Ms. Peterson is an independent, privately trained, Court Qualified & Certified Forensic Document Examiner, CFDE and Forensic Handwriting Expert. She has been examining questioned document cases since 2009. As a handwriting specialist, Dianne has rendered over 600 opinions on questioned document cases both nationally and internationally. Ms. Peterson and her staff will be sure to handle your case with the utmost quality and integrity within the industry.

Clients that have previously engaged the services of Forensic Document Investigations, speak very highly of the professionalism that was shown to them and their questioned signature case. Questioned handwriting cases are turned around in a very timely manner, once all documentation has been rendered for an examination.

At FDI, we look forward to serving you and rendering nothing more than the truth in all of our questioned document cases. An expert opinion report can often facilitate a quicker resolve in most all legal cases.

Do not delay in hiring Ms. Peterson as your handwriting expert for your questioned document case. A verbal/written opinion report from FDI can often make a difference in settling your case.

As seen on: “Swift Justice with Nancy Grace” – CBS Television


 Consultant for the following: CSI (CBS Television), New York Times, Reader’s Digest, MTV, Business Weekly, NYU, Tennessee Bureau of Investigation

What our clients are saying:

In April 2013, my client retained Ms. Peterson to use her expertise in examining handwriting samples. Due to Ms. Peterson’s work, my client’s case resulted in a victory. Ms. Peterson was very professional in her delivery and provided a detailed analysis of her work. As a trial attorney of 18 years I would not hesitate to utilize her services again. – Deborah Nickson, Attorney at Law

It has been a pleasure working with Dianne concerning questioned documents. We have found that her professionalism and diligence in seeking the truth over questioned documents goes beyond others that I have dealt with before. Having been in Law Enforcement and Private Investigations for over 20 years, I have had the opportunity to work with many document examiners. I find Dianne among the best. – Rick Brownlee

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Call us Toll Free at: 1-888-763-8881

Tennessee: (615) 346-9198

Georgia: (678) 935-1881

Other: (931) 284-4139

Gladly Supporting the Entire United States, Canada and Extended Territories.

Previous cases have included: California, New York, Kansas, Missouri, North Carolina, South Carolina, Florida, Kentucky, Alabama, Arkansas, Louisiana, Virginia and Georgia. 

Call Us Today If You Need Help With The Following:

  • Last Will and Testament Questioned Signature
  • Signature Forgery Victimization
  • Disputed Contracts Suspect Documents
  • Altered or Deletions to Documents
  • Handwriting Analysis
  • Forged and Altered Checks
  • Identity Theft
  • Expert Witness
  • Real Estate Transfer
  • Land Deeds
  • Power of Attorney
  • Life Insurance Beneficiary Change
  • Signature Verifications
  • Handwriting Identification
  • Threatening Letters
  • Anonymous Letters
  • Graffiti
  • Defamation of Character Letters
  • Accounting Ledgers
  • Medical/Dental Entries
  • Fraud
  • Forgery Conviction


Dianne can provide a quick and candid strategy that can bring resolve. Choosing the right document examiner is an important as choosing the right attorney. Dianne can make the difference.