New analysis by the College of Kent has discovered that optical coherence tomography (OCT) imaging expertise could be utilised to tell apart between professional and counterfeit journey paperwork.
OCT imaging has been broadly used within the medical and biomedical fields, recognised as reworking the sphere of scientific ophthalmology, and this analysis revealed in Science & Justice has now recognized its capabilities for forgery detection use.
This was a joint examine between the Utilized Optics Group (PDRA Dr Manuel Marques and Professor Adrian Podoleanu) and the Forensic Group (Reader Robert Inexperienced OBE) within the College of Kent’s College of Bodily Sciences, whereas working alongside the forensics science expertise firm, Foster + Freeman (Dr Roberto King). The work demonstrates that OCT can carry out quantitative, non-destructive, excessive decision sub-surface evaluation of multi-layered identification doc, with a excessive imaging throughput and high-density quantity. The expertise sometimes takes lower than 10 seconds to detect counterfeit documentation.
The researchers have assessed the security measures in specimen passports and nationwide ID playing cards. The OCT expertise uncovered the documentation’s translucent constructions, non-destructively enabling quantitative visualisation of embedded security measures.
The massive variety of fraudulent id paperwork in circulation continues to be a priority for the UK Authorities, with organised, transnational crime and the specter of criminals and terrorists crossing worldwide borders undetected nonetheless a risk. Passport fraud stays one of many best threats to world safety. Whereas an growing variety of security measures have been launched by authorities within the newest era of identification paperwork (reminiscent of a number of layers of polycarbonate), this sophistication could make the flexibility to tell apart professional from counterfeit paperwork an ever-evolving problem. Subsequently, this presents an unmet and evolving must establish such refined forgeries, in a non-destructive, excessive throughput method.
Robert Inexperienced OBE, mentioned: ‘As paperwork turn out to be tougher to forge, so does the sophistication of forgery detection. Though safer than their predecessors, the newest era of id paperwork manufactured utilizing polycarbonate layers stay inclined to counterfeiting. Fraudsters are inclined to undertake techniques reminiscent of copying paper or polycarbonate, reproducing paperwork and hologram photographs utilizing refined pc expertise earlier than re-laminating. Any of those techniques will have an effect on the inside construction of a doc, displaying the significance of its subsurface characterisation and the profit that OCT can present to establish such tampering.’
Dr King mentioned: ‘We imagine that the applying of OCT can be utilized by a number of stakeholders within the discipline, particularly forensic scientists working to validate suspected counterfeit paperwork and doc producers as a non-destructive methodology of high quality management. OCT can protect proof which can be helpful for prison investigations, in addition to forestall the pointless destruction of professional paperwork which can have been beforehand flagged as suspected forgeries.’
Their analysis paper ‘Sub-surface characterisation of latest-generation identification paperwork utilizing optical coherence tomography’ is revealed by Science & Justice. DOI: 10.1016/j.scijus.2020.12.001
Disclaimer: AAAS and EurekAlert! are usually not answerable for the accuracy of reports releases posted to EurekAlert! by contributing establishments or for the usage of any data by the EurekAlert system.