Combating the identity problem is crucial and urgent as false identity has become a common denominator of many serious crimes, including mafia trafficking and terrorism. Without correct identification, it is very difficult for law enforcement authority to intervene, or even trace terrorists’ activities. Amongst several identity attributes, personal names are commonly, and effortlessly, falsified or aliased by most criminals. Typical approaches to detecting the use of false identity rely on the similarity measure of textual and other content-based characteristics, which are (...) usually not applicable in the case of highly deceptive, erroneous and unknown descriptions. This barrier can be overcome through analysis of link information displayed by the individual in communication behaviours, financial interactions and social networks. In particular, this paper presents a novel link-based approach that improves existing techniques by integrating multiple link properties in the process of similarity evaluation. It is utilised in a hybrid model that proficiently combines both text-based and link-based measures of examined names to refine the justification of their similarity. This approach is experimentally evaluated against other link-based and text-based techniques, over a terrorist-related dataset, with further generalization to a similar problem occurring in publication databases. The empirical study demonstrates the great potential of this work towards developing an effective identity verification system. (shrink)

This paper critically reviews the judgment of the United States Court of Appeals for the Ninth Circuit In re: Jayson Reynoso: Frankfort Digital Services et al., v. Sara L. Kistler, United States Trustee et al. (2007) 447 F.3d 1117. The appellants, who were non-lawyers, were indicted with unauthorised practice of law for offering bankruptcy petition services via online legal software or expert systems in law configured for filing bankruptcy petition forms. The United States Court of Appeals for the Ninth Circuit (...) found inter alia that appellants were bankruptcy petition preparers, and not being lawyers, had exceeded their clerical remit by offering legal advice and legal services in contravention of California law regulating legal practice and 11 U.S.C. Sect. 110 of the Bankruptcy Code (2002). While examining the legal ramifications of the use of legal software by non-lawyers in the preparation of legal documents, the paper critically reviews the factual circumstances of the Reynoso decision in the context of juridical and statutory constructs of unauthorised practice of law in the United States. The paper poses the question whether Reynoso should be viewed as a one-off decision bound by its peculiar facts, or good law for the broad proposition that non-lawyers cannot use legal software in legal documents preparation. The paper also notes the possible legal barriers to an unconditional ban on the design, sale, distribution, and uses of legal software by non-lawyers. These range from the First Amendment right to free speech, constitutional right to pro se legal representation, interstate commerce doctrine, to antitrust provisions of the Sherman Act. A regime of best practices for the use of legal software or expert systems in law by non-lawyers is proffered. (shrink)

The first issue of _Artificial Intelligence and Law_ journal was published in 1992. This paper discusses several topics that relate more naturally to groups of papers than a single paper published in the journal: ontologies, reasoning about evidence, the various contributions of Douglas Walton, and the practical application of the techniques of AI and Law.