Evidence evaluation in fingerprint comparison and automated fingerprint identification systems--modelling within finger variability

Recent challenges and errors in fingerprint identification have highlighted the need for assessing the information content of a papillary pattern in a systematic way. In particular, estimation of the statistical uncertainty associated with this type of evidence is more and more called upon. The approach used in the present study is based on the assessment of likelihood ratios (LRs). This evaluative tool weighs the likelihood of evidence given two mutually exclusive hypotheses. The computation of likelihood ratios on a database of marks of known sources (matching the unknown and non-matching the unknown mark) allows an estimation of the evidential contribution of fingerprint evidence. LRs are computed taking advantage of the scores obtained from an automated fingerprint identification system and hence are based exclusively on level II features (minutiae). The AFIS system attributes a score to any comparison (fingerprint to fingerprint, mark to mark and mark to fingerprint), used here as a proximity measure between the respective arrangements of minutiae. The numerator of the LR addresses the within finger variability and is obtained by comparing the same configurations of minutiae coming from the same source. Only comparisons where the same minutiae are visible both on the mark and on the print are therefore taken into account. The denominator of the LR is obtained by cross-comparison with a database of prints originating from non-matching sources. The estimation of the numerator of the LR is much more complex in terms of specific data requirements than the estimation of the denominator of the LR (that requires only a large database of prints from an non-associated population). Hence this paper addresses specific issues associated with the numerator or within finger variability. This study aims at answering the following questions: (1) how a database for modelling within finger variability should be acquired; (2) whether or not the visualisation technique or the choice of different minutiae arrangements may influence that modelling and (3) what is the magnitude of LRs that can be expected from such a model. Results show that within finger variability is affected by the visualisation technique used on the mark, the number of minutiae and the minutiae configuration. They also show that the rates of misleading evidence in the likelihood ratios obtained for one of the configurations examined are low.     

Multimodal biometrics for identity documents (MBioID)

The MBioID initiative has been set up to address the following germane question: What and how biometric technologies could be deployed in identity documents in the foreseeable future? This research effort proposes to look at current and future practices and systems of establishing and using biometric identity documents (IDs) and evaluate their effectiveness in large-scale developments. The first objective of the MBioID project is to present a review document establishing the current state-of-the-art related to the use of multimodal biometrics in an IDs application. This research report gives the main definitions, properties and the framework of use related to biometrics, an overview of the main standards developed in the biometric industry and standardisation organisations to ensure interoperability, as well as some of the legal framework and the issues associated to biometrics such as privacy and personal data protection. The state-of-the-art in terms of technological development is also summarised for a range of single biometric modalities (2D and 3D face, fingerprint, iris, on-line signature and speech), chosen according to ICAO recommendations and availabilities, and for various multimodal approaches. This paper gives a summary of the main elements of that report. The second objective of the MBioID project is to propose relevant acquisition and evaluation protocols for a large-scale deployment of biometric IDs. Combined with the protocols, a multimodal database will be acquired in a realistic way, in order to be as close as possible to a real biometric IDs deployment. In this paper, the issues and solutions related to the acquisition setup are briefly presented.     

Informing the judgments of fingerprint analysts using quality metric and statistical assessment tools

The aim of this research was to evaluate how fingerprint analysts would incorporate information from newly developed tools into their decision making processes. Specifically, we assessed effects using the following: (1) a quality tool to aid in the assessment of the clarity of the friction ridge details, (2) a statistical tool to provide likelihood ratios representing the strength of the corresponding features between compared fingerprints, and (3) consensus information from a group of trained fingerprint experts. The measured variables for the effect on examiner performance were the accuracy and reproducibility of the conclusions against the ground truth (including the impact on error rates) and the analyst accuracy and variation for feature selection and comparison. The results showed that participants using the consensus information from other fingerprint experts demonstrated more consistency and accuracy in minutiae selection. They also demonstrated higher accuracy, sensitivity, and specificity in the decisions reported. The quality tool also affected minutiae selection (which, in turn, had limited influence on the reported decisions); the statistical tool did not appear to influence the reported decisions.     

Narendra Modi between Hindutva and subnationalism: The Gujarati asmita of a Hindu Hriday Samrat

ABSTRACT

After the 2002 pogrom, Narendra Modi, the Chief Minister of Gujarat, shifted his political repertoire from that of a Hindu Hriday Samrat (King of Hindus’ heart) to that of development and Gujaratiness. He claimed that he was a development man (Vikas Purush) and that he represented the 60 million Gujaratis as an aam admi (common man). He projected himself as an embodiment of their identity—asmita. This populist repertoire, which was explicitly articulated during the Sadbhavna mission in 2012, is in tune with the general trend of Indian politics where most of the Chief Ministers claim to epitomize one subnationalism. In the case of Narendra Modi, however, this regional identity was defined in religious terms and reflected a banalization of Hindutva, an original process that was more likely to happen in Gujarat because of the traditional definition of the state’s identity.     

Short term impact of Tribulus terrestris intake on doping control analysis of endogenous steroids

Tribulus terrestris is a nutritional supplement highly debated regarding its physiological and actual effects on the organism. The main claimed effect is an increase of testosterone anabolic and androgenic action through the activation of endogenous testosterone production. Even if this biological pathway is not entirely proven, T. terrestris is regularly used by athletes. Recently, the analysis of two female urine samples by GC/C/IRMS (gas chromatography/combustion/isotope-ratio-mass-spectrometry) conclusively revealed the administration of exogenous testosterone or its precursors, even if the testosterone glucuronide/epitestosterone glucuronide (T/E) ratio and steroid marker concentrations were below the cut-off values defined by World Anti-Doping Agency (WADA). To argue against this adverse analytical finding, the athletes recognized having used T. terrestris in their diet. In order to test this hypothesis, two female volunteers ingested 500 mg of T. terrestris, three times a day and for two consecutive days. All spot urines were collected during 48 h after the first intake. The ¹³C/¹²C ratio of ketosteroids was determined by GC/C/IRMS, the T/E ratio and DHEA concentrations were measured by GC/MS and LH concentrations by radioimmunoassay. None of these parameters revealed a significant variation or increased above the WADA cut-off limits. Hence, the short-term treatment with T. terrestris showed no impact on the endogenous testosterone metabolism of the two subjects.     

India and Pakistan: Interpreting the Divergence of Two Political Trajectories

While suggestions were made in the 1990s that Pakistani and Indian political trajectories were converging as Pakistan took steps towards democratisation and India showed increasing signs of authoritarian centralisation, the following analysis offers a more historically sensitive view that suggests the opposite is true. In over fifty years of independence, institutional and societal structures have worked to create the political systems that we see on the Indian subcontinent today, and have helped define the potentially explosive Indo-Pakistan relationship so threatening in today's world. By analysing the ways in which different historical legacies act upon the current political cultures in both India and Pakistan, we engage in a fuller understanding of the contributing factors to the status quo in each. Further, historical analysis may shed some light on the expected trajectories of these two countries as they attempt to reinvent themselves at the beginning of the twenty-first century.     

Influence des réseaux d'action publique sur le changement politique: l'exemple de l'écologisation des politiques suisses et valaisannes du tourisme,des transports et de l'agriculture

Nombreux sont les politologues qui considèrent que l'approche des réseaux d'action publique (policy networks) est essentiellement statique et de ce fait incapable de rendre compte du changement politique. Dans ce contexte, l'article s'interroge sur la contribution heuristique du concept de réseau dans l'explication du changement politique compris ici comme (re)formulation de politiques publiques. Sur la base des résultats d'une recherche empirique portant sur l'écologisation des politiques suisses et valaisannes du tourisme, des transports et de l'agriculture, l'auteur arrive à la conclusion que le concept de réseau peine à expliquer les origines du changement politique, mais qu'il a par contre une valeur heuristique certaine pour comprendre le contenu de ce changement. Il reste néanmoins qu'une théorie du processus décisionnel basée uniquement sur une approche de type réseau d'action publique est insuffisante et a besoin des apports d'autres approches si elle entend rendre compte de toute la complexité du changement politique.     

Antipoverty Transfers and Labour Market Outcomes: Regression Discontinuity Design Findings

The article estimates the impact of Familias en Acción, a human development conditional cash transfer programme, on adult labour market outcomes in urban areas in Colombia. Relying on a regression discontinuity design and a large panel dataset, the article finds significant, largely positive, but heterogeneous programme effects on labour market outcomes. The findings suggest that antipoverty transfers enable a re-allocation of household productive resources among participant households.     

Closed Distribution Networks and E-commerce: Antitrust Issues

Closed distribution networks (ie exclusive or selective distribution networks) have to integrate the development of the internet, particularly in sectors such as fine fragrances or new cars sales. Producers (ie Chanel or Volkswagen) cannot ignore that their products are potentially available on the web. Considering the relationships between producers and their off-line dealers, the question is to know if these dealers could be authorized to resell the products on their own website. In each sector, producers have to adapt their distribution contracts for e-commerce. In a previous paper (published in the Journal of Information, Law and Technology , 2000, No 2) we conclude that electronic points of sales must respect criteria used for physical points of sales, but with some adaptations. The major issue for producers is to build legally secured contracts in order to manage both off-line and on-line distribution networks. But the adaptation of traditional distribution contracts cannot ignore the antitrust framework, especially in the European context, since the new Block Exemption Regulation No 2790/99 on Vertical Restraints has been published. Producers' strategies within the European Union must take into account potential competition restraints implied by their contract policy. When drafting their contracts for e-commerce opportunities, producers have to deal with the legal standing of their networks within the European antitrust law. In this paper, our purpose is to analyze implications of the on-line distribution strategy that could be drawn up by a producer from the European competition law viewpoint. We determine opportunities and constraints presented by the Guidelines from a producer's point of view, and we examine whether European competition law does offer any interesting 'room for manoeuvre' for producers who develop closed distribution networks. We also identify what kind of elements could lead to a withdrawal of the benefit of the Block Exemption Regulation No 2790/99; we show that this withdrawal could arise from a market share evaluation, or from the disproportion between competition restraints (stemming from the distribution contract clauses) and the necessity of an economic progress within the European Commission (EC).