Forensics age dating ink
This company also supplied the knowledge about the current problems in dating documents, real cases that had been subjected to legal examination. Speckin Lawyers should be interested in the forensic examination of disputed records for three reasons: 1. Ink dating The dating of inks is done in three primary forms. Approximately one-third of all inks manufactured in North America contain a cumerin compound that is unique for its year of manufacture. Also, the first date of production can be established by determining the type and manufacture of the ink.More accurate, less invasive After observing this natural evolution and once the base guideline had been established, the next challenge to be overcome was to check the viability of the method using spontaneously written documents whose exact age was known, such as diaries, laboratory logs and judicial evidence from judicial processes that had been closed.So the team used the same procedure as that used to analyse the samples produced for the research. This technique managed to spot the age of the ink on documents written up to five years previously and with an approximation margin of about 20%.As Luis Bartolomé pointed out, "what is interesting about this method is that it can more accurately determine the age of the stroke produced by the ballpoint pen. That is why it is very useful for documents that have been signed as it is possible to compare whether the body of the document, if it has been written by hand, is as old as the signature. 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 ...
Until now, the passing of time was detected only in a very general way, in other words, it was possible to determine whether the document was young (whether it was less than 90 days old) or old (more than 2 years).
Itxaso San Román, Luis Bartolomé and Rosa María Alonso allowed the chemical compound to age under normal conditions, without ageing it artificially, which is what happens in other methods, and studied its evaporation speed.
When analysing the kinetics involved in its disappearance, the research group established a pattern that links the state of the ink with the time that has elapsed.
In fact, the dating of documents is a key area in the field of forensic science.
These are often very tricky questions to answer and frequently arise in judicial contexts.