A field study of the accuracy and reliability of a biometric iris recognition system

PurposeThe iris of the eye appears to satisfy the criteria for a good anatomical characteristic for use in a biometric system. The purpose of this study was to evaluate a biometric iris recognition system: Mobile-Eyes?.MethodsThe enrollment, verification, and identification applications were evaluated in a field study for accuracy and reliability using both irises of 277 subjects. Independent variables included a wide range of subject demographics, ambient light, and ambient temperature. A sub-set of 35 subjects had alcohol-induced nystagmus. There were 2710 identification and verification attempts, which resulted in 1,501,340 and 5540 iris comparisons respectively.ResultsIn this study, the system successfully enrolled all subjects on the first attempt. All 277 subjects were successfully verified and identified on the first day of enrollment. None of the current or prior eye conditions prevented enrollment, verification, or identification. All 35 subjects with alcohol-induced nystagmus were successfully verified and identified. There were no false verifications or false identifications. Two conditions were identified that potentially could circumvent the use of iris recognitions systems in general.ConclusionsThe Mobile-Eyes? iris recognition system exhibited accurate and reliable enrollment, verification, and identification applications in this study. It may have special applications in subjects with nystagmus.     

Using a cognitive analytic approach to formulate a complex sexual and violent offender to inform multi-agency working: developing a shared understanding

Abstract

Cognitive Analytic Therapy (CAT) is a collaborative time-limited psychotherapy developed by Ryle. The approach aims to formulate how early experiences influence the development of unhelpful patterns that maintain a person's current difficult experiences. Within the UK, forensic services personnel are increasing their uses of CAT approaches within contextual, i.e. treatment teams, settings. Offending behaviour is relational (perpetrator to victim), and CAT is a relational model. Within the context of National Health Service consultation service (Serious Offender Liaison Service) working with the Police and Criminal Justice Social Work to assess, formulate and give advice regarding working with serious sexual and violent offenders, often with personality disorders, a case example is presented. The paper suggests that utilising a relational model, such as CAT, and applying one of the main the tools of this approach, through diagrammatic representations (maps) of the formulation, can enable agencies working with an individual to share a common formulation and language.     

Relational geographies of cyberterrorism and cyberwar

Cyberterrorism is an increasingly pervasive term in the mainstream media; however, its definition remains vague at best. As the use of information technology continues to expand, the real and virtual worlds are evermore entwined, including the use of such technology for military purposes. Contemporary work in border studies explains the growing permeability of state borders. Inspired by the works of Paul Virilio, this paper holds that cyberattacks exemplify the increasingly relational quality of war. Case studies of China, Iran, North Korea, Syria and Russia are offered to illustrate this trend.     

The impact of judge–defendant communication on mental health court outcomes

Previous research has shown that mental health courts have been successful in reducing the rates of recidivism among mentally ill offenders. However, none of these studies, to date, have examined exactly what aspects of the courts reduce these rates of recidivism and what makes them successful. The current study utilized a sample of 291 mentally ill criminal offenders participating in a mental health court to examine whether those participants who were addressed by and communicated with the judge had a reduction in recidivism rates and the severity of new charges in comparison to those who did not. The hypotheses regarding greater judge–defendant communication and recidivism were not supported. This suggests that communication in and of itself is not sufficient to reduce recidivism. Future research of a qualitative nature is essential to identify if the frequency, tone, and valence of the communication results in improved outcomes. In addition, these results may indicate a necessity for more stringent training and guidelines for the maintenance of Mental Health Courts. Results of the current study suggested differences between genders, such that females were spoken to by the judge more frequently than were men.     

EU update

This is the latest edition of Baker & McKenzie’s column on developments in EU law relating to IP, IT and telecommunications. This article summarises recent developments that are considered important for practitioners, students and academics in a wide range of information technology, e-commerce, telecommunications and intellectual property areas. It cannot be exhaustive but intends to address the important points. This is a hard copy reference guide, but links to outside websites are included where possible. No responsibility is assumed for the accuracy of information contained in these links.