Analysis of carboxyhemoglobin and cyanide in blood from victims of the Dupont Plaza Hotel fire in Puerto Rico

Ninety-seven people died from a fire that occurred in the Dupont Plaza Hotel in Puerto Rico on 31 Dec. 1986. All, except four who died later in the hospital, were found dead at the scene. All of the fatalities at the hotel (except for eight) were burned beyond recognition. Blood from seventy-eight of the victims was screened for carboxyhemoglobin at the Institute for Forensic Sciences in Puerto Rico and was then sent to the National Institute of Standards and Technology, Gaithersburg, Maryland, for analysis of carboxyhemoglobin and cyanide concentrations. The blood data indicated that carbon monoxide and hydrogen cyanide, singly or combined, were probably not responsible for the majority of the deaths that occurred in the badly burned victims. On the other hand, the significantly higher carboxyhemoglobin in the nonburned victims indicated that carbon monoxide alone or combined with hydrogen cyanide probably played a major role in the cause of their deaths.     

Governing Genetic Databases: Challenges Facing Research Regulation and Practice

This paper reports on the initial findings of an interdisciplinary research project on the governance of human genetic databases in England and Wales. The number of biosample and information collections has expanded, yet considerable legal uncertainty surrounds their definition, collection, storage, management, and use which could inhibit research and clinical practice, while failing to protect the rights and interests of all stakeholders. We report some initial findings from the legal research and identify major challenges associated with defining 'genetic databases'. We identify a wide range of relevant instruments and regulatory actors, and suggest that none adequately addresses the challenges posed by contemporary research techniques or the'corporeal'and'informational'materials used in the genetic databases context. This preliminary analysis seriously questions the efficacy of the current regulatory framework and concludes that developing an appropriate governance framework for the creation, maintenance, and use of genetic databases requires the bringing together of legal analysis with good quality empirical evidence.     

Science in the Jury Box: Jurors’ Comprehension of Mitochondrial DNA Evidence

Questions about how jurors understand and apply scientific evidence were addressed in a mock jury study in which 480 jury pool members watched a videotaped mock trial that included expert testimony about mitochondrial DNA (mtDNA) evidence purportedly linking a defendant to a crime. Collectively, jurors showed moderately good comprehension of the mtDNA evidence, although some made definitional and inferential errors. Comprehension was better among jurors with higher educational attainment and more mathematics and science courses. Lower comprehension was associated with jurors’ reservations about science and concerns about the contamination of mtDNA evidence. The results suggest that most jurors are capable of comprehending and employing scientific evidence presented during trial, although errors and doubts about the evidence should be anticipated.