Ink dating expert
When it comes to conducting a thorough investigation, examining all the pieces of the puzzle are key to producing a clear history of the unknown.
Sometimes two inks can look identical to the naked eye but further tests may be able to distinguish between them. For example inks can be examined using infra red or ultraviolet reflectance at various wavelengths or using visible light but examining emissions from the ink in the infra red area of the spectrum (infra red luminescence).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. has extensive experience as a forensic chemist and document dating specialist.An ink formulation can be identified to a specific manufacturer to ascertain the first date of commercial availability. 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. Other ink entries are not necessary for comparison. Aginsky has developed the SET as a result of many years of research of the ink aging methodology developed and published by Dr. For example, if the questioned document’s date precedes the manufacturing date for the ink used to sign the document, it is established that the document could not have been signed on the date it bears. Such intra-comparisons of inks may reveal that the questioned entries were not written contemporaneously with the other entries in the file (document). – The examination’s purpose is to assess whether the use of various inks on the document(s) fits a pattern that is either consistent with the dates appearing on the document(s) or indicates preparation "at one time" (during a short period of time). Paper folds – It is often possible to determine whether an ink line that intersects a paper fold was written before or after the paper was folded.Offset marks – When two pieces of paper are pressed together, marks such as writing (and printing) may be transferred from one to another.
Drexler Document Laboratory, LLC provides the ALL States with experienced, accurate, and timely examinations and comparisons on a large range of Forensic Document and Handwriting problems including: No case is too large or small.