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Services

Some of the actual cases in which Aginsky Forensic Document Dating Laboratory has provided expert services included the following types of examinations:

  • Dating of documents
  • Dating of ink on documents (see Ink Dating)
  • Determining whether inks on a document were commercially available on the supposed date of preparation of the document (e.g., 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 prepared on the date it bears) 
  • Examining medical records to determine whether the entries were made at the time alleged
  • Determining sequence of written and printed entries (e.g., to answer the question, “Was a page signed in blank and then the text was printed?”)
  • Determining whether a signature is original (ink) or a computer generated color copy
  • Examining documents for suspected alterations, such as:
    • page substitutions or insertions
    • obliterations/overwriting, eradications, erasures
    • entries inserted (interlineations, additions) or changed after the fact 
  • Examining toner, inkjet and dot matrix printer ribbon ink (computer generated documents, photocopies, faxes) using physical (optical) and chemical methods
  • Examining paper using physical and chemical methods
  • Examining ink (signatures, writings, printed entries, typewritten entries, stamp impressions, highlighted/obliterated entries) using physical and chemical methods
  • Determining whether entries in a diary are a contemporaneous record of events
  • Examining intersections (areas where two or more pen lines cross) to determine the order of writing (it may prove that a particular entry was added at a later time)
  • Determining whether a particular photocopy was produced on a suspected machine
  • Examining multiple documents (originals or photocopies), which were supposed to come from different sources, to determine whether they came from their respective origins or whether they have a common source
  • Examining multiple documents (entries, signatures), which are dated over a long period of time, to determine whether they were or were not produced on or around their purported dates.