A mixed DNA profile controversy revisited

Semaan et al. (J Forensic Res, 2020, 11, 453) discuss a mock case “where eight different individuals [P₁ through P₈] could not be excluded in a mixed DNA analysis. Even though … expert DNA mixture analysis software was used.” Two of these are the true donors. The LRs reported are incorrect due to the incorrect entry of propositions into LRmix Studio. This forced the software to account for most of the alleles as drop-in, resulting in LRs 60–70 orders of magnitude larger than expected. P₁, P₂, P₄, P₅, and P₈ can be manually excluded using peak heights. This has relevance when using LRmix which does not use peak heights. We extend the work using the same two reference genotypes who were the true contributors as Semaan et al. (J Forensic Res, 2020, 11, 453). We simulate three two-donor mixtures with peak heights using these two genotypes and analyze using STRmix?. For the simulated 1:1 mixture, one of the non-donors’ LRs supported him being a contributor when no conditioning was used. When considered in combination with any other potential donors (i.e., with conditioning), this non-donor was correctly eliminated. For the 3:1 mixture, all results correctly supported that the non-donors were not contributors. The low-template 4:1 mixture LRs with no conditioning showed support for all eight profiles as donors. However, the results from pair-wise conditioning showed that only the two ground truth donors had LRs supporting that they were contributors to the mixture. We recommend the use of peak heights and conditioning profiles, as this allows better sensitivity and specificity even when the persons share many alleles.     

Acute myoglobinuria as a fatal complication of heroin addiction

A fatal case of myoglobinuria complicating heroin addiction is described. Clinically the patient had no overt symptoms of rhabdomyolysis. Pathologists should be alerted to this rare complication in heroin addicts who die of no apparent cause. The antimyoglobin immunoperoxidase technique is useful in confirming the diagnosis.     

Putting Local Associations Into their Context. Preliminary Results from a Swiss Study of Local Associations

The paper presents results from the Swiss case of the European comparative project CID (Citizenship, Involvement, Democracy). This project examines the relationship between political institutional assets and civic and political engagement in several Western and Eastern European countries. The paper seeks to investigate how civic engagement can be generated and shaped by a given institutional and political context as well as by a peculiar community size. The central hypothesis is that the context affects the character of local participation. To verify this, the papers examines two different Swiss cantons: the German speaking Canton of Bern and the French speaking Canton of Vaud. Moreover, for each canton, four local communities of different size have been selected. This research design discusses how participation is fostered by a more open political opportunity structure (the German canton), and how this combines with the size of the community.     

接管放弃的决定因素及后果

过去三十年接管行为引起了学术界的广泛关注,其中大多数研究关注于成功的接管,尤其是研究接管行为对被接管目标公司和竞价公司双方股东财富的影响。与成功接管不同的是,被迫放弃的接管行为(即接管放弃)相对而言受学术界的关注较少。这种令人惊讶的现象是因为相当大比例的接管竞价不成功。本文试图通过对接管失败方面文献的综合调研来说明这种研究上的偏颇。本文关注于两方面文献:第一,回顾和讨论可能影响接管结果的因素;第二,分别从目标公司和竞价公司的角度考察接管放弃的后果。还要分析未来的研究领域,这将进一步深化公司对接管放弃的因果关系的认识。     

A Jury of Their Peers: A Meta-Analysis of the Effects of Teen Court on Criminal Recidivism

Juvenile delinquency has been on the decline for a number of years, yet, juvenile courts continue to assess more than 1 million cases per year. Involvement with the juvenile justice system has been linked to a number of risk factors and consequences that may impact positive youth development; however, evidence-based correctional programs that divert juvenile offenders away from formal processing are limited. Teen Court is a specialized diversion intervention that offers an alternative to traditional court processing for juvenile offenders. Despite the rapid expansion of Teen Courts, there is little comprehensive and systematic evidence available to justify this expansion. This meta-analytic study examines the effects of Teen Court on the recidivism of juvenile offenders. The literature search resulted in the selection of 14 studies, which contributed 18 unique effect sizes with a total sample of 2125 treatment group and 979 comparison group youth. The findings suggest that Teen Court is no more effective at reducing recidivism than (a) formal processing or (b) other diversion programs. Implications of formal and informal court processing for low-risk, first-time young offenders are discussed. The authors draw on the Risk-Need-Responsivity model to provide recommendations for policies and practices.     

Letter to the editor: Commentary on “Strategic choice in linear sequential unmasking,Roger Koppl,Science & Justice,https://doi.org/10.1016/j.scijus.2018.10.010”

This letter to the Editor comments on the paper ‘Strategic choice in linear sequential unmasking’ by Roger Koppl (Science & Justice, https://doi.org/10.1016/j.scijus.2018.10.010).