FAQ’s Speckin Forensic Laboratories
Can an examination be conducted of a signature or handwriting from only a photocopy?
Yes, but if it is possible to obtain the original it allows a more thorough examination of the document and the circumstances of its production. The possibility of a tracing of a machine copy transfer forgery cannot be ruled out.
Is it possible to date pencil or typewritten documents?
Yes, in some cases.
Is it possible to determine when a questioned document was produced?
Yes, through several different methods that can be conducted in our laboratory.
Some Methods Dating for Handwritten documents
1) Dating of the ink
2) Dating of the paper
3) Impressions found and sequencing of writing with impressions
Some Methods for Dating Photocopied documents
1) By comparing the unique photocopy damage pattern that changes over time, to a series of documents of unquestioned date from the same office.
2) Comparison of the toner used as in the same manner above, noting the time frames that toners matching the questioned document were used.
Some Methods for Dating Computer Generated documents
1) Examination of the computer and hard drives that created the document.
2) Toner analysis as described above for copiers.
3) Damage patterns that may exist from the printer, commonly seen in inkjet printers.
4) The type of paper used and any associated watermarks.
What is necessary to make a signature examination?
The original questioned document or the best generation copy available; also undisputed known signatures of the alleged signatory as contemporaneous with the date on the questioned document as possible.
Can a signature examination be conducted from only a microfilm or facsimile copy?
Yes, again the original is best if available.