Expertise in Fingerprint Identification

Although fingerprint experts have presented evidence in criminal courts for more than a century, there have been few scientific investigations of the human capacity to discriminate these patterns. A recent latent print matching experiment shows that qualified, court‐practicing fingerprint experts are exceedingly accurate (and more conservative) compared with novices, but they do make errors. Here, a rationale for the design of this experiment is provided. We argue that fidelity, generalizability, and control must be balanced to answer important research questions; that the proficiency and competence of fingerprint examiners are best determined when experiments include highly similar print pairs, in a signal detection paradigm, where the ground truth is known; and that inferring from this experiment the statement “The error rate of fingerprint identification is 0.68%” would be unjustified. In closing, the ramifications of these findings for the future psychological study of forensic expertise and the implications for expert testimony and public policy are considered.     

Anonymous Speakers and Confidential Sources: Using Shield Laws When They Overlap Online

The development of the Internet as a mass medium has created new tensions between the rights to speak anonymously and to be protected against defamation. Some courts have developed balancing tests to determine when anonymous speakers should be unmasked, the most popular of which generally require some initial showing of prima facie evidence. Other times, shield laws have been used to protect the anonymous when comments have been posted on news organization Web sites. However, news organizations should be cautious when using shield laws to protect anonymity, and judges should evaluate privilege claims as they always have. In other instances, anonymity appears to be adequately protected by summary judgment balancing tests. An approach in which news organizations focus on the type of comment and its potential journalistic contribution in deciding how to protect commenters’ identities could help ensure that anonymous speech is properly protected without harming shield laws.     

Governance as a strategy in state-of-nature games

Public choice scholars routinely claim that coercion can be used to solve the social dilemma. However, while social contract theorists have frequently described state-of-nature societies using game theory, they have not used game theory to show how coercive action within such societies can improve outcomes. Here I operationalize the concepts of coercion and governance within a Prisoners’ Dilemma (PD) framework; governance is operationalized as coercion to compliance, and to adopt a coercive strategy is to impose a strategy choice upon another player. I show that, under certain conditions, adding governance strategies to a noncoercive one-shot PD game can improve outcomes.     

Regulating Global Financial Markets

This paper discusses the role of regulation in the emergence of a global system of linked financial markets. It traces the origins of the internationalization of financial markets to the emergence of new competitive pressures, rooted in changes in the social structures of savings and investment, breaking down both national systems of financial control and international arrangements for monetary and financial co-ordination. These changes have been accompanied and facilitated by a process of international re-regulation, through informal specialist networks. Although these have facilitated the international diffusion of regulatory standards and practices, and attempted to co-ordinate them, they are greatly hampered by espousing the perspectives of the various markets and firms which it is their task to supervise. Together with their minimalist view of the aims of public legitimation and oversight of financial markets, they have proved inadequate to prevent the destabilizing effects of the new global finance on the world economy.     

The Stable Isotope Ratios of Marijuana. II. Strontium Isotopes Relate to Geographic Origin

Abstract:  Effectively addressing marijuana trade is aided by understanding marijuana geographic sources. We analyzed the ⁸⁷Sr/⁸⁶Sr of marijuana samples grown in 79 counties across the United States to determine if a primary geologic signal is retained in marijuana, which could therefore be useful for geographic sourcing. The marijuana results were compared with modeled bedrock ⁸⁷Sr/⁸⁶Sr values based on ⁸⁷Rb decay rates and a generalized geologic map of the U.S.A. A significant correlation was observed between marijuana ⁸⁷Sr/⁸⁶Sr and modeled bedrock ⁸⁷Sr/⁸⁶Sr. Although values clustered near the 1:1 relationship, there was a predominance of positive anomalies, perhaps attributable to carbonate bedrock. A small number of negative anomalies were also observed, which were generally associated with granitic bedrocks. These results suggest that strontium isotopes in marijuana record the geographic origins of marijuana, and that refinement of the base strontium map (or strontium isoscape) and improved understanding of other strontium sources would be productive.