In this brief reconsideration of the roles experts may play in legal proceedings - and concentrating on the role of social scientists in particular - it may, therefore, be useful to revisit some very familiar issues and to address some seemingly peripheral matters that are nevertheless quite central to the way we think about the involvement of experts in legal cases. For purposes of introducing some of these issues it may be helpful to focus on three interrelated concerns: the ascertaining of expert qualifications, the role of evidentiary procedure, and the extra-judicial use of social information.

It is one of the central paradoxes of any legal system that it should appear at once so central to the imposition of decisive pronouncements aimed at the very structure of social relationships yet remain dependent on forces beyond its direct control for the acceptance and implementation of these strictures. This peculiar status of laws and legal institutions gives rise both to exaggerated claims for its impact on social change and equally unrealistic assertions that all legal systems merely follow and support processes whose fundamental operations are carried out in the broader spheres of social and political life. Like other institutions, a legal system performs distinctive tasks in accord with its own internal history and logic. But in its very design and operation it is deeply influenced by the struggles for control and influence that occur among its own personnel, and between them and other sectors of society. Being neither self-executing nor independently defined, statutory propositions and judicial opinions have impacts which are as difficult to trace in detail as they are wide-ranging and interconnected at large. Even in societies with elaborated and sharply delineated legal institutions, the role of the legal system in shaping or reflecting social and political patterns partakes of this confusion of distinctiveness and derivativeness.

Proceedings of the Doha Conference of ‘Ulama on Islam and Cultural Heritage. Doha, Qatar. December 30–31, 2001. Pp. 73 in English and Arabic each. New York: UNESCO, 2005.

On February 26, 2001, the Islamic Emirate of Afghanistan ordered the destruction of “all statues and non-Islamic shrines” in the country. In March the ministers of culture and finance destroyed 2750 of the nation's art treasures; after a month of intensive shelling, the Taliban government obliterated the statues of the Buddha in Bamiyan. At the end of December 2001, a conference of Islamic legal scholars (‘ulama) was convened on the subject of cultural heritage at Doha, Qatar. In between, of course, came the September 11, 2001, attacks (9/11).

The introduction of the Uniform Crime Reporting system (UCR) in 1930 remains one of the most important events in the history of criminal statistics in the United States. Based on local police reports, it is the oldest extant national crime data system in the United States, with the possible exception of prison statistics. It continues to be a vitally important data system because of its extensive use by scholars, social critics, governmental organizations and the media, and as such it has made a major contribution to our understanding of crime in the United States in the last half century. The UCR has also had its share of controversy, involving not only scientific issues of validity and reliability, but the possibility of covert agendas on the part of the police and the FBI to foster an image of effective law enforcement. Despite its importance and controversial nature there is no single objective and definitive written history documenting the beginnings of the UCR. That which exists tends to be brief and superficial, and at times even ideologically biased (Leonard 1954; Maltz 1977; Sherman et al. 1982; Thompson 1968; U.S. Federal Bureau of Investigation 1940).

Gamma irradiation is used to sterilize products intended for ophthalmic and parenteral use. Ideally, the sterilization process should not affect the chemical identity or physical properties of the product. We have investigated the effects of gamma irradiation on the structure and molecular weight of hydroxypropyl cellulose (HPC), and the subsequent effect on dissolution behavior of HPC. Hydroxypropyl cellulose is a commonly used excipient in pharmaceutical formulations and tablet coatings, and can be used to manufacture water soluble objects. We find that the moisture content of the HPC influences the extent to which scission and cross-linking reactions occur. At low moisture levels (<5 wt.%), cross-linking is relatively unimportant, while above 12 wt. % moisture cross-linking becomes extensive leading to formation of insoluble, rubber-like gels.