Quality With Integrity

Toll Free: 1(888) 763-8881

Tennessee: (615) 346-9198

Just a Few of Our Satisfied Clients

Professional Handwriting Expert Analysis and Witness

As a trained and court-approved handwriting expert, I, Dianne Peterson, can provide expert handwriting analysis and forensic document investigations throughout Tennessee and the United States. If needed, I can also appear as a court-appointed handwriting analysis witness.
Other services offered:

  • Signature Verification
  • Court Forgery
  • Expert Handwriting Analysis
  • Forensic Document Examination

Red gel pen ink

A Handwriting Expert Is Needed When…

  • You need a handwriting specialist.
  • You need handwriting analyzed.
  • You are a victim of forgery.
  • You have a document that has been tampered with that will greatly affect your life or livelihood.
  • You are looking to receive an objective “expert opinion” that can help your attorney make a strategic decision, which can significantly impact the outcome of your case.
  • You need a credible and expert witness.
  • You are about to lose everything you worked hard for because someone forged your signature.
  • You are wrongly accused of a crime you did not commit.
  • You have threatening letters and need to investigate the source.
  • You have medical or dental records, which have been altered and you need to dispute the validity of those records.
  • You have valuable memorabilia and need verification of the signature.
  • Your family is being torn apart because of a real estate transfer.
  • You have a last will and testament that is in dispute.
  • You are looking for nothing else but the truth for peace of mind.

Burr striations evidence of a blue ink ballpoint pen

Hire a Professional Handwriting Expert

Dianne can offer a quick and candid strategy that can bring a resolution to your problem. Choosing the right document examiner is as important as choosing the right attorney. Forensic Document Investigations can make that difference.

The first consultation is always free! Call me today at 1(888) 763-8881.


Ink pooling

FAQ - Forensic Document Investigations

Forensic document examination is a field of scientific study designed to identify forgery and establish the authenticity of documents in legal disputes. Questions are common. FDI’s FAQ page helps to clear up some of those questions.

What time frame do the comparison documents need to be from?

Ideally, the time frame would be within two years of the questioned document or as close as possible. We put together the best possible case before it is sent in for examination.

I only have photocopies, can you work with them?

Yes, photocopies can be examined although originals are always preferred. We recommend that clients make a formal written request for original documents if they do not have possession of them.

Can I take a picture of the questioned signature and just send it?

It is always recommended that the entire page of the document be sent. FDI will need to source where each signature originated from.

How do I send FDI my case?

United States Postal Service (USPS), FedEx, UPS, or scanned and sent in a PDF format by email.

FDI is no longer accepting faxes due to the low resolution of fax machines.

How do I make my payment for FDI services?

Clients that wish to pay with a credit card will be emailed a money request/invoice.

Do I get my documents back?

Yes! All materials are returned to the client after the case has been completed.

Client Responsibility

FDI wants each client to do their due diligence when putting together their questioned document case. Each case stands alone with the evidence that is provided. Although rare, sometimes a case can be solved with only one signature. It all goes back to what the evidence holds.

It is always encouraged that each client should provide the very best evidence that is possible for them to obtain. FDI always reserves the right to change an opinion if at any point in time any additional documents/evidence is added to an existing case.