They both undertook extensive training in Government Laboratories where they worked for several years prior to working together in a private company, Document Evidence Ltd, one of the first private forensic companies in the UK. Steve Cosslett and Kate Barr are both experienced single joint experts and have an unparalleled experience of court attendance. Steve and Kate offer a free advice and quotation service. They will determine whether an examination is feasible, what specimens are required and provide a written quote. Cosslett and Barr Ltd will provide the following forensic document examination services.
Ink and Paper Analysis / Trace Evidence / Questioned Document Examination
FAQ Can You Determine the Date of Preparation of a Document
Have questions? Give us a call IPS Testing is able to determine likely age ranges for paper products by using wood fibers, pulping chemistry, paper additives and surface treatments to serve as dating markers. Our experienced fiber science team, led by Walter Rantanen, has developed an international reputation for paper and document forensics. While exact age dating of papers is not possible, the process is often able to exclude samples as being made in the time period of question. Walter Rantanen has developed a large database of paper with known ages.
Dating of Documents
There's more to a piece of paper than meets the eye - and paper analysis can find it. This specialized investigative process extracts historical and physical evidence from documents, photographs, art prints, books, and other paper-based objects. These tools are used, alone or in combination, to characterize the properties of paper in a number of ways.
The ability to how examine these materials, as was described previously, does how exist to the same ballpoint. It is possible to examine xerographically produced materials and determine the paper to which they have been exposed to environmental conditions. This can provide an estimate of age. Additional lab methodologies are being evaluated that concern the other referenced materials. Physical and carbon examinations can indicate the use of multiple paper, printers, papers or writing instruments in the preparation of a document.