Ink Dating and Paper Analysis

Evidence may not be visible to the naked eye

Ink Testing and Paper Examinations

How can ink analysis and paper examinations help determine when a document was produced?

The chemical analysis of writing and printing inks, as well as paper, can be invaluable when trying to prove whether a document is fraudulent. Ink dating is a highly specialized forensic examination and considered to be one of the most accurate and reliable methods to help determine the age of a document.


gerrylaporteGerald M. LaPorte, M.S.F.S. has extensive experience as a forensic chemist and document dating specialist.  He trained with and served as the Chief Research Forensic Chemist with the United States Secret Service and was responsible for maintaining the largest known forensic collection of writing inks in the world. Mr. LaPorte has published several scientific papers in the area of forensic document examination and authored chapters in the Forensic Chemistry Handbook (“Chemical Analysis Techniques Used in Forensic Document Examinations”) and The Wiley Encyclopedia of Forensic Sciences(“Document Fraud and Forgery”). Mr. LaPorte is an active member in numerous forensic organizations and has provided expert testimony in international, federal, and state courts.

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