A brief history of the formation of DNA databases in forensic science within Europe

The introduction of DNA analysis to forensic science brought with it a number of choices for analysis, not all of which were compatible. As laboratories throughout Europe were eager to use the new technology different systems became routine in different laboratories and consequently, there was no basis for the exchange of results. A period of co-operation then started in which a nucleus of forensic scientists agreed on an uniform system. This collaboration spread to incorporate most of the established forensic science laboratories in Europe and continued through two major changes in the technology. At each step agreement was reached on which systems to use. From the beginning it was realised that DNA databases would provide the criminal justice systems with an efficient way of crime solving and consequently some local databases were created. It was not until the introduction of the amplification technology linked to the analysis of short tandem repeats that a sufficiently sensitive and robust system was available for the formation of efficient and effective DNA databases. Comprehensive legislation enacted in the UK in 1995 enabled forensic scientists to set up the first national DNA database which would hold both personal DNA profiles together with results obtained from crime scenes. Other countries quickly followed but in some the legislation has severely restricted the amount and type of data which can be retained and, therefore, effectiveness of the databases is limited. The widespread use of commercially produced multiplex kits has produced a situation in which nearly all European laboratories are using compatible systems and there is, therefore, the potential for the introduction of a pan-European DNA database. However, the exchange of results between countries is hampered by the various legislations which currently exist.     

Battlefield Responses to New Technologies: Views from the Ground on Unmanned Aircraft

How do individuals on the battlefield respond to the introduction of new technologies? How will unmanned and increasingly autonomous technologies be received by ground combat personnel? In this paper we explore tactical-level perceptions of one particular technology—armed unmanned aerial vehicles (UAVs)—by conducting a survey experiment of ground fires controllers. Our findings reveal that these personnel have strong behavioral reactions to the introduction of unmanned technology. Especially in situations with high risk to ground troops, we find a strong preference for manned aircraft with implications for the future use of UAVs and human–machine relationships in war. These results suggest the need to incorporate behavioral variables into future studies of military adoption and innovation and indicate that the future adoption of unmanned systems may be just as much about the “warm fuzzy” of trust as confidence in unmanned capabilities.     

Rising start-up costs of voting: political inequality among first-time voters

Abstract

Research on voting behaviour stresses that whether citizens become habitual voters depends on the very first elections in their adult life. This article focuses on the increasing participation gap of first-time voters with low and high levels of resources. Looking first at 14 European countries and second at long-term dynamics in Germany, the turnout rate of first-time and older voters over time is compared. It is shown that the turnout gap has increased substantially since the 1980s. In contrast, educational differences in electoral turnout among older citizens are still comparatively small. It is argued and shown that the turnout gap among the young is due to rising ‘start-up’ costs of voting, which affect mainly those who are resource poor.     

Prisoners with psychosis in England and Wales: diversion to psychiatric inpatient services?

The prevalence of psychosis among prisoners in England and Wales is ten times that in the household population and UK government policy is that prisoners should receive equivalent care to those in the community. This study investigated the implications of policy to divert more from the criminal justice system for psychiatric treatment. Psychotic prisoners were compared with psychotic persons in households and with other prisoners in two surveys of psychiatric morbidity in representative samples of the UK population. Psychotic prisoners were younger, more from ethnic minorities, with comorbid anxiety, substance misuse, ASPD, and childhood behavioural problems compared to psychotic persons in households. Less than a third had received previous inpatient treatment. Psychotic prisoners had similar criminal histories and higher psychopathy scores than non-psychopathic prisoners. Diversion is unfeasible without improved screening for psychosis and increasing bed numbers at higher levels of security to accommodate more patients who would pose high risk to the public. Future research should investigate why UK psychiatric services fail to identify psychotic prisoners and provide aftercare.     

Bayesian networks and the value of the evidence for the forensic two-trace transfer problem*

Forensic scientists face increasingly complex inference problems for evaluating likelihood ratios (LRs) for an appropriate pair of propositions. Up to now, scientists and statisticians have derived LR formulae using an algebraic approach. However, this approach reaches its limits when addressing cases with an increasing number of variables and dependence relationships between these variables. In this study, we suggest using a graphical approach, based on the construction of Bayesian networks (BNs). We first construct a BN that captures the problem, and then deduce the expression for calculating the LR from this model to compare it with existing LR formulae. We illustrate this idea by applying it to the evaluation of an activity level LR in the context of the two-trace transfer problem. Our approach allows us to relax assumptions made in previous LR developments, produce a new LR formula for the two-trace transfer problem and generalize this scenario to n traces.     

The nexus between science and industry: evidence from faculty inventions

Knowledge transfer from science to industry has been shown to be beneficial for the corporate partner. In order to get a better understanding of the reasons behind these positive effects, this study focuses on the junction of science and industry by comparing characteristics of academic inventions that are transferred to industry and those staying in the public sector. Academic inventions are identified via patent applications of German academic scientists. We find that academic patents assigned to corporations are more likely to enable firms reaping short term rather than, possibly more uncertain, long-run returns, in contrast to patents that stay in the public sector. Firms also strive for academic inventions with a high blocking potential in technology markets. Academic patents issued to corporations appear to reflect less complex inventions as compared to inventions that are patented by the public science sector.     

Arsenic Poisoning Caused by Intentional Contamination of Coffee at a Church Gathering—An Epidemiological Approach to a Forensic Investigation

Abstract: An outbreak of apparent food‐borne illness following a church gathering was promptly reported to the Maine Bureau of Health. Gastrointestinal symptoms among church attendees were initially attributed to consumption of leftover sandwiches that had been served the previous day. However, a rapid epidemiological and laboratory assessment revealed the etiology of illness, including the death of an elderly gentleman, was not food‐borne in origin. A criminal investigation determined that deliberate arsenic contamination of the brewed coffee by one of the church members was the source of the outbreak. Public health officials and criminal investigators must be aware that intentional biologic aggression can initially present as typical unintentional disease outbreaks. Practitioners must also consider the need to properly maintain and preserve potential forensic evidence. This case demonstrates the key role public health practitioners may play in criminal investigations.     

HIV-1 prevalence in deaths caused by drug overdose in various large cities of West Germany and West Berlin between 1985 and 1988

The development of the HIV-1-prevalence among drug deaths (n = 753) in several German cities (West Berlin, Frankfurt, Munich, Hamburg, Bremen, Cologne and Stuttgart) from 1985 to 1988 was evaluated; in 1988 43% of 674 deceased drug addicts were examined. The regional prevalence rate was between 15 and 25%; only in Berlin 42% of the drug deaths were HIV-infected (cumulated data of all cities over the 4-year-period: 26%). There was no uniform or steady regional development of HIV-1-prevalence in the different cities. The ratio men/women among drug deaths was 3:1. The HIV-1-prevalence among males was 22%, among females 40%. HIV-infected individuals were 2-3 years older than seronegatives. Predictions concerning the trend of prevalence rates are not possible up to now. Continuous monitoring of the HIV-status of drug deaths seems to be a worthful method to evaluate the spread of this disease among the risk group of intravenous drug addicts.