In these cases, significant dating errors occur because the type of paper used and the mass/quantity of the ink deposited influence the analysis.Likewise, the team that has developed this new method has managed to obtain results using minimal amounts taken from the document. These are often very tricky questions to answer and frequently arise in judicial contexts.
Unlike the large quantity of sample required by other traditional methods to age the compounds artificially and analyse them, the technique developed in the UPV/EHU labs allows the document to be dated using a single puncture and without altering the compounds. DATINK pilot study: An effective methodology for ballpoint pen ink dating in questioned documents, Archeologists have uncovered a large Bronze Age city not far from the town of Dohuk in northern Iraq.
So Datink offers a more accurate, less damaging, less intrusive and less harmful result. The excavation work has demonstrated that the settlement, which is now home to the small Kurdish ...
Its use could have for example helped to determine the moment when the papers in the Bárcenas [corruption claims] case were written." To conduct the research work, the Department of Analytical Chemistry had the collaboration of the company Investigaciones Forenses Documentales LEYAS and Magdalena Ezcurra holder of a Ph D from the UPV/EHU.
This company also supplied the knowledge about the current problems in dating documents, real cases that had been subjected to legal examination.
Each document was produced at different moments using a different ink stroke pressure, factors that may alter the results and lead to dating errors.