Piercing the surface: A mechanical analysis of stabbing with household tools

Estimating the applied power during a stabbing incident, or estimating the minimal force necessary to penetrate the body with a certain weapon is a challenging task in forensic practice. A thorough forensic evaluation of stabbing forces needs objective numerical experimental data. Stabbing tests of 12 different weapons – including knives, a pair of scissors, a fork, screwdrivers, a rasp, a corkscrew, and a utility knife blade – were performed with a Mecmesin MultiTest-dV material tester on pork loin and ballistic gel to estimate the stabbing forces and dynamics. Penetration force (F_p) and maximal force (F_max) were recorded, and the registered force curves were analyzed. F_max was 159.8–212.07 Newton (N), 30.56–30.58 N, 168.9–185.48 N for various knives; 171.39–190.43 N for the pair of scissors, 233.6 N for the fork; 532.65–562.65 N, 370.31–367.19 N and 314.51–432.89 N for various screwdrivers, 44.14–56.62 N for utility knife during pork loin stabbing. The butter knife, corkscrew and rasp were not able to penetrate the pork loin, and the curved fork bent during stabbing. The results prove that weapon characteristics greatly influence the force necessary for penetration. Maximal stabbing force depends mostly on tip sharpness, and the force sharply decreases after penetration occurs, which indicates that edge sharpness is not as important as tip characteristics during stabbing perpendicular to skin surface. The penetration force during stabbing with a pair of scissors is comparable to the penetration force of knives. Stabbing with screwdrivers generally needs larger force than average knives but depends greatly on screwdriver size.     

Pulp volume quantification methods in cone-beam computed tomography for age estimation: A critical review and meta-analysis

The secondary dentin deposition that occurs after the tooth formation process results in a decrease in pulp cavity volume in adolescents and adults. The purpose of this critical review was to correlate pulpal and/or dental volume on cone-beam computed tomography (CBCT) with chronological age approximation. A subobjective was to investigate which methodology and CBCT technical parameters would be most appropriate to evaluate this correlation. This critical review followed the PRISMA guidelines, and it was conducted by a search through PubMed, Embase, SciELO, Scopus, Web of Science, Cochrane Library databases, as well as gray literature. Primary studies that used pulp volume, or pulp chamber to tooth volume ratio measured using CBCT were included. Seven hundred and eight indexed and 31 non-indexed records were identified. A qualitative analysis was performed including 25 selected studies with a total of 5100 individuals, age ranging from 8 to 87 years without sex predilection. The most used method was pulp volume/tooth volume. CBCT voxel size ranged between 0.09 and 0.5. Manual segmentation associated with threshold algorithms was used in most of the studies. Correlation between the pulp volume/tooth volume ratio was moderate: −0.66 for the upper central incisors, −0.59 for upper canines and −0.56 for lower canines. High heterogeneity was observed among the studies. It is concluded that pulp volume should be used with caution in age estimation. Evidence supports the preferable use of upper incisors with pulp volume/tooth volume ratio for age estimation. There is not enough evidence that voxel size interferes in age estimation by pulp volume.     

Petechial Hemorrhages and Ethanol in Deaths from Intoxication

Petechiae in conjunctivae and in the palpebrae/skin of the eyelids are of particular interest for the forensic pathologist, because of their association with pressure on the neck. They have been described in the eyelids of intoxicated persons both in case reports and in text books of forensic pathology. We studied 590 deaths caused by intoxication, and 75 had petechiae either in the conjunctivae, the eyelids, or in both locations. We examined the influence of drugs and ethanol on the location of the petechial hemorrhages in these deaths. Deaths with ethanol in blood and in urine/vitreous humor more often had petechiae in both locations than those without. This association was statistically significant, independent of body position and livor mortis. No association between the location of petechiae, medicinal drugs, or narcotics was found. These results suggest that ethanol may contribute to the development of petechial hemorrhages in deaths from intoxication.     

A Case Study of Semiotic Distinctiveness in Brand Names

Brand names constitute a form of value for commercial products, because they suppose a savings of search costs for the consumer. The law, as a consequence, has the obligation to protect brand names. But the number of attractive brand names is not infinite and sometimes companies seek brand names which are reminiscent of others. In this article a conflict between two companies for the distinctiveness of two brand names is addressed: one Spanish company used the English common noun doughnut for a product similar to the American pastry, while the other company had already registered donut as a brand name, in addition to its variants. This second company sued the first on the grounds that the names were not distinctive. Here we offer the arguments presented to the judge in defense of the distinctiveness of doughnut and the judgment.     

Training in the Strategic Use of Evidence technique: Improving deception detection accuracy of American law enforcement officers

The Strategic Use of Evidence (SUE) approach is a framework for planning and executing suspect interviews with the aim of facilitating judgments of truth and deception. US law enforcement officers (N = 59) either received training in the SUE approach or did not. Each officer interviewed a mock suspect (N = 59) who had either committed a simulated security breach or had completed a benign task. The officers who received SUE training interviewed in line with the training: They questioned the suspect systematically, withheld the evidence and critical case information until after questioning, and relied on statement-evidence inconsistency to detect deceit. Consequently, SUE-trained interviewers achieved a higher deception detection accuracy rate (65%) compared to untrained interviewers (43%).     

Partner Violence Entrapment Scale: Development and Psychometric Testing

This article describes the development and testing of the psychometric properties of the Partner Violence Entrapment Scale (PVES), an instrument that evaluates the women’s perceived reasons for staying in violent partner relationships. After initial pilot testing, the scale was administered to 213 Spanish women who were victims of intimate partner violence (IPV). An exploratory factor analysis identified six factors: Socio-Economic Problems, Attachment and Fear of Loneliness, Blaming Oneself and Resignation, Impact on Children, Fear of Harm and Worry for the Partner, and Feelings of Confusion. Discriminant validity was established by demonstrating associations between PVES factors and socio-demographic, clinical and abuse variables. The scale appears to be a useful assessment tool for social and clinical settings. Its factor structure, reliability, and validity need to be replicated in other populations and samples.     

Coalitions in European Union Negotiations

Coalitions will probably become an increasingly important theme in European Union (EU) politics. The spread of decision making by majority voting promotes coalition‐building behaviour. The impending enlargement is predicted to differentiate and polarize policy standpoints within the EU. Increasing levels of policy conflict imply increased propensities for coalition building. Still, the role and nature of coalitions in EU negotiations are obscure. This article raises important research questions: What characterizes coalition building in the EU? How important are coalitions? What coalition patterns are discernible?Using data from a questionnaire to Swedish participants on EU committees, it is shown that coalitions are more frequent when majority voting occurs than when unanimity rules. Coalition behaviour is, however, important also under unanimity. The existence of consensus norms diminishes the propensity to form coalitions. As regards coalition patterns, there is a prevalence of coalitions based on policy interests and/or on cultural affinity. Contrary to conventional wisdom, consistent and durable coalition patterns seem to exist. The north–south divide is one such persistent pattern. The Swedish respondents thus reveal a close cooperation between the Nordic member states and Great Britain, whereas France and Spain are seldom approached for coalition‐building purposes. As to future research, evidence from other member states and from case studies is needed in order to learn more about the bases for coalition building in EU negotiations.     

The Structure and Culture of Post-Communist Civil Society in Latvia

This article provides an account of post-communist civil society in Latvia. Based on original survey data, the structure of civil society is analysed on both individual and organisational levels and cultural aspects are examined. The weakness of post-communist civil society found in much previous research is confirmed when measured on the individual level and in relation to some organisational aspects. The political culture of civil society in Latvia is relatively trusting, tolerant and pro-democratic, but elitist. The specific weaknesses of post-communist civil society can be attributed to the historical heritage of the communist regime as well as the context in which new foreign-funded civil society organisations emerged.     

Connolly and the never-ending critiques of liberal peace: from the privilege of difference to vorarephilia

Over the last decade, a dominant critique of international interventions underlines the problem that interventionary strategies have denied the political, societal and cultural heterogeneity of conflict-affected societies, excluding the interests of the majority of their population. A deeper engagement with the everyday life of these societies is understood to expose the errors of international missions and animate an alternative way of thinking about peace: ‘hybrid peace’, which is formed contextually and from below. Engaging with William Connolly’s work on pluralism, this article clarifies the nature of this critique, which rests securely on the assumption that local alterity cannot be fully understood, respected or treated sensitively by international governance approaches. However, as much as this assumption enables the thinking of an emancipatory hybrid peace, it is in turn the source of its critique, as hybrid peace is also seen as reproducing binary schemas and thus considered incapable of caring for the societies intervened in. At the conclusion, the metaphor of vorarephilia—paraphilia where sexual arousal occurs in the idea of being eaten or eating another person—will be used to warn against the tragic direction that critiques seem to be travelling to: critical scholars would be increasingly tempted to welcome the inevitable failures of international interventions.