| Autor: |
Balbuena, Jose, Djizdrovska, Danijela, Ledić, Andrea, Hofer, Rolf |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
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| Popis: |
Several forensic instrumental techniques have been tested and used in an effort to determine the time separating the execution of two lines. These techniques have required the use of chemical analysis which is costly, destroys the evidence, and the results are not accurate. For this reason, INTERPOL’s Counterfeit Currency and Security Documents Branch and the International Academy of Experts in Handwriting and Documents proposed a unique non-destructive procedure to address this issue so as to help forensic experts to resolve cases of forgery, for example in identity documents and financial frauds. To carry out their work, experts need to determine when the lines on a questioned document were performed (ink dating) and what is the time separating two or more lines (delta time - t). The advantages of developing a non-destructive technique are two-fold. First, developing a technique that does not physically alter the sample which may need to undergo multiple experiments. This is often necessary in empirical situations where the sample is contested during a trial or when judicial authorities instruct further testing by different parties on the same sample. Second, preserving the sample’s validity by using non-destructive experiment techniques would allow for the samples to be stored and archived in a database for crossed line intersections that could be used for future investigations. Such a database would serve document examiners and law enforcement officers as a useful resource and reference tool at national and international levels. This new scientific study has three hypotheses. The first two were studied between 2010 and 2011 and proved that there are physical reactions in crossed line intersections and that in certain cases, the order in which the lines are executed can be determined. These results were approved and validated by the Scientific Committee Members and published by AIEED in 2012. The second phase of the project emphasizes the new approach to determine ink ageing and to identify the luminescence compounds in inks by chemical methods. The Project on the Physical-Chemical Study of Crossed Line Intersection has been guided by principles that are complementary to our mandates and INTERPOL’s commitment to support police and law enforcement agencies in its member countries. Gaining a better understanding of the sequencing of line-crossings will help forensic document examiners to identify forged documents thereby assisting criminal investigations and combatting and preventing future crimes. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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