Crime Scene and Distance Correlates of Serial Rape

This study, derived from a sample of 108 serial rapists (rapes=565), examines the relationship between demographic, crime scene, and criminal history variables and the distance traveled by serial rapists in order to offend. The pattern of offenses perpetrated by each of the 108 serial offenders as it relates to his place of residence is also analyzed in terms of known characteristics of the offender and his offenses. The theoretical focus of the study integrates premises derived from criminal investigative analysis, environmental criminology, ethnographic geography, journey to crime research, and criminal geographic targeting to explore the cognitive symmetry between the how and the where of serial sexual offenses. These components or dimensions of serial crime are explored in an attempt to aid law enforcement in their investigation of hard-to-solve serial crimes.     

Social Inequality and the Perceived Income Justice Gap

This paper attempts to answer the question whether justice evaluations of income inequality in a society are determined more by country differences or by the social position an observer occupies. In very general terms what we study is whether, in shaping justice beliefs, cultural factors are more important than social-structural ones, or vice versa. In view of transformation societies, country differences are conflated with differences in the transformation processes the countries are experiencing. This is why we distinguish different types of transmations with regard to the postcommunist countries of Eastern and Central Europe testing empirically whether these transformation types exert influence on the justice beliefs, and how this influence compares to that of positional effects. With International Social Justice Project (ISJP) data of 1991 and 1996, we study the Czech Republic, Hungary, Russia, Bulgaria, East Germany, and—as a western referent society—West Germany. Main results are that in the early phase of transformation the different transformation types as well as social positions matter in shaping justice evaluations, over time, however, the types of transformation clearly lose influence. In 1996, compared to 5 years earlier, the countries have become similar in that most of the variation in the perception of the income justice must now be attributed to the positional differences of individuals. We conclude that the characteristics of the transformation processes decrease in importance for determining public views about social justice. In this respect, the transformation societies of Eastern and Central Europe may well be on the route to becoming more like western societies.     

Trace DNA success rates relating to volume crime offences

In this study, 252 trace DNA samples (from handled surfaces) from 201 burglary, robbery and drugs cases were compiled to assess success rates and to interpret the value of trace DNA evidence in volume crime investigations. The average amount of DNA recovered from the trace DNA samples collected was 1.7 ng. Full or major (12 or more alleles) profiles were recovered from 14% of samples. Samples from firearms and burglary points of entry were the least successful. Mixtures were recovered from 21% of samples, presenting a case for the collection of more elimination profiles to enable more samples to be used for database purposes. The research highlighted the difficulties in collecting data relating to the success rates of samples. Computerised automation of this process would be extremely beneficial in the assistance of policy development, method application, training, and investigative usefulness.     

Preliminary trials of low volume AmpFlSTR Profiler Plus amplification using AmpliGrid (AG480F) slides

Low volume PCR using the AmpliGrid (480F) slide system can potentially enhance the generation of more complete profiles from trace samples, in addition to providing a more cost-effective alternative for typing standard samples. Based on our preliminary results, implementation will require a reasonable investment in optimisation and validation for the intended purpose.     

Reconstruction of sexual offences--forensic aspects of sperm traces

The investigation of sexual offences is a real challenge, as the injuries are often unspecific or faint and may sometimes be missing completely. Evidence recovery and analysis as well as the statements of the victims and suspects are therefore of vital importance. In both presented cases, the results of trace evidence analysis were basically consistent with a sexual assault, but the victims' statements regarding the course of events and the pattern of traces showed severe discrepancies.     

The political economy of labor market regulation by the European Union

Since the introduction of qualified majority voting, at least 58 labor regulations have been imposed by the European Community/Union. Three types of explanations are considered: i) the asymmetry of the EC budgetary process, ii) regulatory collusion and iii) the strategy of raising rivals’ costs. Collusion and the strategy of raising rivals’ costs are compared in a two-country game-theoretic model with international capital mobility. The empirical analysis shows that the transition to qualified majority voting was not preceded by a striking tendency of competitive national deregulation. In all cases in which a directive was contested, the UK was among the contestants. Various indices show that the UK has the least regulated labor market. More generally, the anti-regulation coalition also includes Ireland, the Scandinavian countries and the Netherlands. There are examples showing that if the coalition is too small to block the regulation, its members prefer not to record their dissent officially. In most investigated cases, the European labor regulation is more restrictive than most but not all prior national regulations. The empirical analysis demonstrates that the strategy of raising rivals’ costs plays an important role in EU labor regulation.

Culture,institutions and democratization*

Public Choice - We construct a model of revolution and transition to democracy under individualistic and collectivist cultures. The main result is that, despite facing potentially more challenging...     

Quantifiler observations of relevance to forensic casework

The Quantifiler (QF) kit is regularly used by forensic scientists for DNA quantitation. We performed in-house validation studies which revealed some interesting observations. The QF standard displayed a two-fold difference between two different lot numbers which suggests that every standard should be tested prior to use. The Promega K562 DNA standard works well with the QF kit. c. 41% of samples that inhibited the internal PCR control (IPC) system within the QF kit still produced good Profiler Plus reactions. QIAquick was effective at removing inhibitors. The presence of dyes within casework samples were observed not to inhibit QF amplifications. Template DNA greater than 100 ng/muL appeared to inhibit the IPC. Close to identical concentration results were obtained when alternative analysis settings were used. These validation findings will assist DNA processes involved in forensic casework.