Document dating in forensic science

Our Practice is the longest established private independent laboratory in Great Britain dealing with the examination of questioned documents.For more than five decades, the laboratory has had an international reputation and regularly receives instructions from all over the world.

These two ink aging methods are the Sequential Extraction Technique (SET) and Solvent Loss Ratio Method (SLRM).

The laboratory has two document examiners who primarily undertake privately funded casework.

Reports are prepared for a variety of courts, both Civil and Criminal in the UK and abroad.

This is because the concepts of absolute and relative aging are not clearly understood.

FDS also undertakes non-invasive forensic examinations of papers as well as writing and printing inks.

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Rantanen examined a large number of photos that were carefully dated to determine what fiber species and pulping processes were used from the early 1900s through the late 1990s.

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