Potential and pitfalls in establishing the provenance of Earth-related samples in forensic investigations

Earth scientists are often asked to establish or constrain the likely provenance of very small quantities of earth-related material as part of a forensic investigation. We tested the independent and collective interpretations of four experts with differing analytical skills in the prediction of sample provenance for three samples from different environmental settings. The methods used were X-ray diffraction, scanning electron microscopy, the assessment of pollen assemblages, and structural characterization of organic matter at the molecular level. Independent interpretations were less accurate than those where multiple techniques were combined. Collective interpretation was very effective in the assessment of provenance for two of the three sites where the mineralogy and plant communities were distinctive. At the other site, although the mineralogical analysis correctly identified the Triassic mudstone soil parent material, Carboniferous spores from domestic coal were initially interpreted as deriving directly from bedrock. Such an interpretation could be a common pitfall owing to anthropogenic redistribution of material such as coal.     

Urban children's work during and after the 1998 floods in Bangladesh

The 1998 floods, which inundated much of Bangladesh, had a major effect on the lives and work of urban slum children. Lack of work opportunities, and beliefs about appropriate roles for young children, meant that the floods did not lead to great increases in workforce entry and in some cases led to a reduction in the opportunities available. Children's domestic work was also affected. Children's paid and domestic work had an important impact on how well households survived during and after the floods. The findings highlight the simultaneously beneficial and harmful nature of much child labour, and are therefore relevant to the dilemmas that face policy makers in this area. The research reported on in this article also has implications for those involved in disaster relief policy making.     

Through the Back Door: Applying Theories of Legal Compliance to Illegal Immigration During the Chinese Exclusion Era

This article applies theories of legal compliance to analyze the making of this country's first “illegal immigrants”—Chinese laborers who crossed the U.S.‐Canadian and U.S.‐Mexican borders in defiance of the Chinese exclusion laws (1882–1943). Drawing upon a variety of sources, including unpublished government records, I explore the ways in which Chinese laborers gained surreptitious entry into the United States during this period and ask, what explains their mass noncompliance? I suggest that while an instrumental perspective is useful for understanding these border crossings, it overlooks other important determinants of noncompliance: normative values and opportunity structures. Specifically, the exclusion laws were widely perceived by the Chinese as lacking social and moral legitimacy, and thus not worthy of obedience. In addition, the existence of smuggling networks and liberal immigration policies in Canada and Mexico played a critical role in facilitating noncompliance. The article concludes with a discussion about the benefits and challenges of using this theoretical framework to analyze noncompliance in immigration law.