An evaluation of measurement uncertainty of trajectory angles using a 3D laser scanner

Measuring trajectory angles of bullet defects at a crime scene is an important part of crime scene investigation as these angles can be used for shooting incident reconstructions. The Washington State Patrol Crime Scene Response Team (WSP CSRT) had a desire to report and use measured trajectory angles. To report quantitative measurements, a statement of uncertainty for the measurement must also be reported due to an accreditation requirement through the ANSI National Accreditation Board (ANAB), through which the WSP CSRT is accredited. This evaluation examined the measurement uncertainty of the 3D laser scanning method that the WSP CSRT utilizes for measuring the vertical and azimuth angles from trajectory rods fitted to bullet defects. Three studies were performed which examined the variation of vertical and azimuth angle measurements from trajectory rods on flat surfaces, the variation of azimuth angle measurements from a trajectory rod on a curved surface, and a traceability study with known vertical and azimuth angle measurements. Seven common substrates were selected as target materials and were shot with 9 mm Luger and 0.45 Auto caliber bullets. A vehicle with one bullet defect was utilized for the curved surface study. The WSP's current fleet of Trimble X7 3D laser scanners, the WSP Criminal Investigation Division (CID) Detectives who operate these scanners, and the Forensic Scientists responsible for trajectory rod placement and angle measurements were utilized. An overall measurement uncertainty of +/− 2.6 degrees at an approximate 95% confidence interval was determined for all trajectory angles measured from trajectory rods.     

EXAMINATION OF THE IMPACT OF INCREASED COURT REVIEW ON PERMANENCY OUTCOMES FOR ABUSED AND NEGLECTED CHILDREN

This article provides a brief history of a federally funded court improvement program, describes the Dane County Court Improvement Project, and discusses the implications of the project evaluation's findings. As part of Wisconsin's efforts under the federally funded state court improvement program, Dane County developed and evaluated a form of accelerated review of selected juvenile court cases. The accelerated review intended to expedite permanency outcomes for abused and neglected children in out-of-home care. The evaluation's findings of the initiative suggest that more frequent court reviews than those mandated by law may increase the likelihood of adopting children entering out-of-home care with no decrease in the likelihood of family reunification. However, because many of the children whose parental rights had been terminated had yet to be placed for adoption at the time of the study's conclusion, the encouraging early findings of the initiative should be regarded with some caution.     

The Deterrent Effects of the International Criminal Court: Evidence from Libya

ABSTRACT

The International Criminal Court (ICC) was designed to try the worst war criminals for crimes against humanity, genocide, and other instances of mass human suffering. By providing a permanent, international mechanism to hold perpetrators of mass human rights abuse accountable, the ICC is also meant to be a deterrent—to prevent potential genocidaires from committing systematic human rights abuses in the first place. But what if the effect is actually quite the opposite? While advocates of international justice have made conjectures about the effect of the ICC on stopping human rights abuses, the existing scholarship does not empirically test assumptions about the relationship between international criminal justice and violence. This article outlines the causal mechanisms by which the ICC could affect ongoing violence and tests these assumptions using event count models of the relationship between the ICC and the level of violence against civilians in Libya during the 2011 crisis. These analyses suggest that the ICC’s involvement in conflict does have a dampening effect on the level of mass atrocities committed. The results also call for a broad and sustained research agenda on the effect of international accountability efforts on ongoing violence.     

Imagining New Social Legal Futures: A Sociolinguistic Analysis of Pre-Law Students’ Experiences with Discourse Communities of Legal Practice

This paper considers the ways that concepts such as social justice and law were used as semiotic objects-in-tension by a group of five US undergraduates considering law school to make sense of their ideas about entering the discourse communities and communities of practice associated with being a lawyer. This group was made up of undergraduate women who had completed a summer residency program sponsored by the Law School Admissions Council to increase enrollment of students from under-represented groups. Of the five participants, two were US-born; the others immigrated to the US as teenagers; each was aware of her position as multiply marginalized, by gender as well as other factors, including refugee or immigrant status, religious affiliation, sexual identity, and/or association with “at risk” labeling. Data analyzed reflect a 3-year study of their changing perceptions of their relationships to law school discourse communities, using text, interviews, individual video narratives, and informal, face-to-face group meetings. A sociolinguistic approach to multimodal discourse analysis is used to examine the ways that the women, each in a unique way, articulated an increased investment in direct and embodied engagement, lived experience, and personal testimony—not as supplements to doing/being a lawyer, but as necessary and expected practices therein. Over time and through various modalities, they used their vantage point from outside the dominant discourse communities of law to stage social critique and to contest the binary logic and normative criteria that forge the boundaries of exclusion from and inclusion in these communities. Specifically, they resemiotized notions of being a lawyer from the margins in ways that demanded a more fluid and polysemous interpretation of what it means to do ethically rigorous social justice work—hence reworking the relationships between justice (as an abstract ideal) and the law (as an institutionalized regime) and widening the semiotic potential of their own future work. Particularly significant are the ways that semiotic trajectories progressed from an emphasis on what Halliday identifies as textual (fixed and highly abstract) functions of language to interpersonal (embodied, relational) and ideational (expressive, experiential) functions. Such a trajectory away from entextualization suggests that voices and perspectives from the margins may be using those imaginary margins tactically as sites from which to contest the boundaries that define whose voices count within the legal system and to contest normative limits on semiotic potentialities for lawyers working toward more just social futures.     

Global risk factors and the prediction of recidivism rates in a sample of first-time misdemeanant offenders

This article examines the prediction of recidivism using the Global Risk Assessment Device (GRAD), a reliable and valid measure of dynamic factors associated with family characteristics, peers, mental health, substance abuse, trauma exposure, educational concerns, accountability, and health risks. Using a sample of adult caregivers of first-time misdemeanant offenders, two factors-education and accountability-were significantly associated with recidivistic behavior, supporting the use of GRAD data in correctly identifying first-time offenders who have the greatest and the least likelihood for future offending behavior. Additional analyses utilizing parent reports on African American males indicate that the GRAD provides discrimination in the prediction of recidivism in a group typically seen as being high risk simply because of their gender and race. The assessment drives intervention approach of the GRAD is discussed in terms of using reports from adults to accurately place youth into appropriate levels of supervision and treatment.