Portable high‐resolution automated 3D imaging for footwear and tire impression capture

The forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and laboratory use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high‐quality footwear and tire impression evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera‐pixel spatial resolution. This paper presents a high‐resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high‐quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high‐end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high‐end commercially available 3D scanner, while having the merits of being (1) more affordable; (2) much easier to operate; and (3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it (1) is non‐destructive; (2) collects more evidence detail than casts, especially when an impression is fragile; (3) requires less time and money to collect each piece of evidence; and (4) results in a digital file that can easily be shared with other examiners.     

Lost in space? the role of place in the delivery of social welfare law advice over the telephone and face-to-face

ABSTRACT

Advice that is provided exclusively over the telephone has been promoted by government as more convenient and accessible than face-to-face appointments. The resulting push towards telephone-only provision, as implemented by the Legal Aid, Sentencing and Punishment of Offenders Act 2012, challenges the long history of association between social welfare law advice and local delivery within disadvantaged communities. This article reports on qualitative research comparing telephone and face-to-face advice which uncovers the continuing relevance of place in the dynamics and mechanics of social welfare law provision. Familiarity with the geographical location, knowledge of local policies and procedures, relationships with opponents and allies, and an understanding of the ‘local legal culture’ mean that face-to-face advisers are often able to conduct their legal casework more effectively. Conversely, local knowledge is unlikely to be available to Community Legal Advice telephone advisers. This research suggests that, in addition, telephone-only advisers may be developing a more narrow understanding of the essential qualities of casework. These findings are particularly significant in view of the likely future expansion of remote methods of delivery in legal aid work.     

Estimating Individual Contributions to Complex DNA SNP Mixtures.,

High‐throughput sequencing (HTS) of large panels of single nucleotide polymorphisms (SNPs) provides an alternative or complimentary approach to short tandem repeats (STRs) panels for the analysis of complex DNA mixture forensic samples. For STRs, methods to estimate individual contribution concentrations compare capillary electrophoresis peak heights, peak areas, or HTS allele read counts within a mixture. This article introduces three approaches (mean, median, and slope methods) for estimating individual DNA contributions to forensic mixtures for HTS/massively parallel sequencing (MPS) SNP panels. For SNPs, the major:minor allele ratios or counts, unique to each contributor, were compared to estimate contributor proportion within the mixture using the mean, median, and slope intercept for these alleles. The estimates for these three methods were typically within 5% of planned experimental contributions for defined mixtures.     

Civilian victimization and international military intervention in civil wars

Civil wars are particularly destructive and asymmetric in nature. As a result, humanitarian crises and episodes of one-sided violence against civilians are likely to emerge. In the post-Cold War era, human rights norms have been strengthened by a global commitment stating that nations have a responsibility to protect people against war crimes. Although the doctrine does not require military responses, as episodes of one-sided violence increase dramatically in the midst of civil conflict, we would expect those cases to experience relatively swift foreign response, including military intervention; a growing trend of at least purportedly humanitarian interventions should be observable. Expectations relating to the responsibility to protect are tested on all civil conflicts occurring between 1989 and 2006. Findings indicate that there is little evidence that one-sided violence leads to military intervention, suggesting that the internationally community does not use its most powerful tool to protect civilians in trouble.     

Shame and Guilt and its Relation to Direct and Indirect Experience of Trauma in Adolescence,a Brief Report

Exposure to different kinds of traumatic events is common among adolescents. This brief report study examined whether shame proneness and guilt proneness were associated with direct and indirect experience of potentially traumatic events (PTEs). We investigated the relationship between gender, PTEs, shame, and guilt among adolescents (n?=?314, age?=?15–20 years). We hypothesized that shame proneness and guilt proneness would be associated with direct experience of interpersonal and sexual PTEs, that both direct and indirect experience of potentially traumatic sexual event/s would correlate with female gender, and that potentially traumatic direct and indirect interpersonal event/s would correlate with male gender. Shame was positively associated with having experienced direct sexual trauma and with female gender. Girls had more often experienced potentially traumatic direct sexual events and boys had more often experienced potentially traumatic direct interpersonal events. Indirect experiences of traumatic events were not related to either gender or shame. We conclude that the relation between shame, PTEs, and gender is complex with both types of traumas and gender interact with shame. This study found that shame and direct experience of sexual traumatic events were associated among adolescent girls. Gender and what type of traumatic events adolescents’ direct experience is most likely related but not gender and what type of indirect experienced trauma.

     

The Impact of Child‐Parent Psychotherapy on Child Dependency Court Outcomes

Although parental compliance with court orders in child welfare cases is key to achieving physical parent‐child reunification and successful case closure, little research has examined how parent‐child relationship‐focused rehabilitative services uniquely influence case outcomes. This project fills this gap by investigating links between court ordering of and parental participation in Child‐Parent Psychotherapy (CPP) with court outcomes. Data were obtained from court records of 448 court‐involved parents. Hierarchical regressions revealed that greater participation in CPP led to reunification and successful case closure but not faster case closure. Courtroom professionals should consider parent‐child relationship‐based therapies as tools for achieving child welfare goals.