Blood droplet dynamics--I

The interpretation of bloodstain patterns at crime scenes has received increased attention in recent years. Important to an understanding of this is knowledge of the fundamentals of blood droplet formation and impact dynamics. A review of the literature reveals that a considerable amount of work has been done with aqueous drop dynamics. Workers in the forensic science area seem to have been unaware of this. In addition, some of the most important and comprehensive early work with blood droplet dynamics seems to have been forgotten. It is not cited in more recent publications dealing with bloodstain pattern interpretation. This literature is reviewed and discussed as well. The present study presents results of experiments with blood droplet dynamics and high-speed photographs of blood droplet impacts on stationary target surfaces. Some longstanding misconceptions of importance to forensic scientists engaged in crime scene reconstruction are discussed.     

Educational malpractice and setting damages for ineffective teaching: a comparison of legal principles in the USA,England and Australia

The extent to which educational institutions and their teachers in the USA, England, and Australia should bear legal responsibility in damages for ineffective classroom teaching is the subject of this article. At the heart of the controversy regarding educational malpractice is the issue of remedies. Federal and state courts in the USA have resisted awarding damages where such an award would appear to sound in educational malpractice. However, although courts in Australia have yet to declare with any degree of certainty, they appear positioned to follow the English approach that ostensibly acknowledges a school's duty of care to provide effective education for all children.     

Managing Equality in Social Dilemmas: Emotional and Retributive Implications

The equality rule is an important coordination rule in symmetric public good dilemmas. Although prior research emphasized that people use the equality rule out of efficiency concerns (as it helps to obtain the public good in the most efficient manner among group members), it may also reflect a true preference for fairness. More precisely, research examining emotional and retributive reactions as a result of a violation of the equality rule by a fellow group member showed that equality indeed is related to people’s personal values and what they consider to be fair. The present paper suggests that a violation of the equality rule results in emotional reactions, and these emotional experiences encourage further retributive actions. The different reactions following an equality violation are described as a function of three features: (1) the motives to use equality, (2) attributions for explaining the violation, and (3) the honesty of the given explanation. The write-up of this paper was partly supported by GOA/05/04 from the Research Fund of the Katholieke Universiteit Leuven. The research and write-up was supported by a fellowship of the Netherlands Organization for Scientific Research (NWO, Grant No. 016.005.019), awarded to the second author.     

Mediation in Italy: Exploring the Contradictions

This article sets Italy in the context of three primary approaches to promoting mediation use in Europe: cultural, pragmatic, and legalistic. Despite the fact that Italy could be considered a "front-runner" in the latter category, the actual number of cases going to mediation to date has remained low. Drawing on both data from a recent CPR European Committee survey and aspects of the broader Italian legal and social context, this article explores reasons for this apparent contradiction and concludes by suggesting general principles that can be extrapolated from the Italian experience.     

Implementation of a semi-automated processing system for DNA profiling of forensic casework samples

The concept for a semi-automated processing system for DNA analysis of crime scene samples was developed at the Landeskriminalamt Baden-Württemberg (LKA BW) and comprises the extraction of genomic DNA from human cells by ChargeSwitch^® magnetic bead technology (CST), quantification of purified DNA by real-time PCR, amplification of short tandem repeats (STRs) by PCR and DNA fragment length analysis of STRs by capillary electrophoresis. Three liquid handling workstations from Tecan, a real-time PCR device and a 16-channel capillary electrophoresis (CE) system, both from Applied Biosystems (AB), are linked via laboratory data network. Transmission and management of sample and analysis data is enabled by a Laboratory Information and Management System (LIMS). Suitability for a wide range of stain types, early exclusion of DNA-free samples, barcode sample identification and prevention of cross-contaminations guarantee efficiency and high quality standards.