March 8, 2021


Advances in world technology

Sub-floor imaging technologies can expose counterfeit vacation files

New analysis by the University of Kent has located that optical coherence tomography (OCT) imaging technological innovation can be utilised to distinguish in between respectable and counterfeit journey paperwork.

OCT imaging has been greatly employed in the professional medical and biomedical fields, recognised as transforming the field of clinical ophthalmology, and this research revealed in Science & Justice has now recognized its capabilities for forgery detection use.

This was a joint study among the Used Optics Team (PDRA Dr Manuel Marques and Professor Adrian Podoleanu) and the Forensic Group (Reader Robert Green OBE) in the College of Kent’s University of Physical Sciences, while working together with the forensics science know-how company, Foster + Freeman (Dr Roberto King). The perform demonstrates that OCT can complete quantitative, non-destructive, significant resolution sub-surface area evaluation of multi-layered identification doc, with a superior imaging throughput and significant-density volume. The technological innovation ordinarily takes considerably less than 10 seconds to detect counterfeit documentation.

The scientists have assessed the stability features in specimen passports and national ID playing cards. The OCT engineering uncovered the documentation’s translucent structures, non-destructively enabling quantitative visualisation of embedded protection functions.

The significant range of fraudulent identity paperwork in circulation proceeds to be a worry for the Uk Governing administration, with organised, transnational crime and the menace of criminals and terrorists crossing intercontinental borders undetected nonetheless a threat. Passport fraud stays a person of the greatest threats to worldwide security. Whilst an escalating quantity of security features have been released by authorities in the newest technology of identification files (these types of as a number of layers of polycarbonate), this sophistication can make the capability to distinguish legit from counterfeit documents an at any time-evolving problem. Therefore, this provides an unmet and evolving want to establish these kinds of subtle forgeries, in a non-damaging, superior throughput method.

Robert Eco-friendly OBE, claimed: ‘As paperwork become harder to forge, so does the sophistication of forgery detection. Despite the fact that more secure than their predecessors, the hottest technology of identification files manufactured making use of polycarbonate layers continue to be prone to counterfeiting. Fraudsters have a tendency to undertake tactics this kind of as copying paper or polycarbonate, reproducing documents and hologram pictures applying refined personal computer technological innovation before re-laminating. Any of these techniques will impact the internal composition of a document, exhibiting the value of its subsurface characterisation and the benefit that OCT can offer to identify these kinds of tampering.’

Dr King reported: ‘We believe that that the application of OCT can be used by a number of stakeholders in the subject, especially forensic experts functioning to validate suspected counterfeit paperwork and document companies as a non-harmful process of good quality control. OCT can protect proof which may well be beneficial for legal investigations, as perfectly as reduce the unwanted destruction of legit files which may have been formerly flagged as suspected forgeries.’


Their study paper ‘Sub-surface area characterisation of hottest-era identification paperwork working with optical coherence tomography’ is printed by Science & Justice. DOI: 10.1016/j.scijus.2020.12.001&#13

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