Decision making in joined criminal trials: The influence of charge similarity,evidence similarity,and limiting instructions

The present research investigated decision-making processes in joined trials of multiple offenses. Subjects judged videotaped trials of three joined charges in a factorial design that varied charge similarity, evidence similarity, and judges' instructions designed to reduce judgement biases; or judged one of several charges presented individually. The results indicated that subjects were more likely to convict a defendant in a joined trial than on the same charge tried by itself, particularly when the charge was presented in the third position. Convictions were more frequent when joined charges were similar, and judges' instructions significantly reduced conviction rates. Subjects judging joined trials confused evidence among charges, rated the prosecution's evidence as stronger, and rated the defendent less favorably than subjects judging single trials. The findings were compared statistically to the results of previous research, and it was concluded that increased convictions in joined trials are robust effects.This research is based on part of a doctoral dissertation by S. Tanford at the University of Wisconsin. The research was supported by National Institute of Justice Grant No. 81-LJ-CX-0048 to S. Penrod.     

microRNA Detection in Blood,Urine, Semen,and Saliva Stains After Compromising Treatments

Evaluation of microRNA (miRNA) expression as a potential method for forensic body fluid identification has been the subject of investigation over the past several years. Because of their size and encapsulation within proteins and lipids, miRNAs are inherently less susceptible to degradation than other RNAs. In this work, blood, urine, semen, and saliva were exposed to environmental and chemical conditions mimicking sample compromise at the crime scene. For many treated samples, including 100% of blood samples, miRNAs remained detectable, comparable to the untreated control. Sample degradation varied by body fluid and treatment, with blood remarkably resistant, while semen and saliva are more susceptible to environmental insult. Body fluid identification using relative miRNA expression of blood and semen of the exposed samples was 100% and 94%, respectively. Given the overall robust results herein, the case is strengthened for the use of miRNAs as a molecular method for body fluid identification.     

The Difficulties in Assessing Wounds Created by .410 Bore Ammunition and Weapons

When interpreting firearm injuries, the distinction between gunshot wounds and shotgun wounds is important, and separation of these categories is typically straightforward. However, .410 bore firearms can make the classification difficult. Shotguns and revolvers that can fire the same .410 bore ammunition are readily available. This study investigates the soot and gunpowder deposits and pellet patterning of these two types of weapons using cartridges specially designed for .410 bore revolvers and standard birdshot pellet ammunition. For both ammunition types, the revolver had more prompt pellet dispersion and positive detection of gunpowder at greater distances compared to the shotgun. Additionally, .410 bore slugs are of similar caliber to many common bullets. In comparing the .410 bore slugs to equivalent bullets, some morphologic differences may be imparted on the skin by the slugs, but the greatest insight into the weapon remained with the retained projectiles.     

How Movement Strength Matters: Social Movement Strength and the Implementation of Ethnodevelopment Policy in Ecuador and Peru

Why has Ecuador been much more successful at implementing participatory policy than Peru despite the similarity between the two countries’ policies and despite their similarly low state capacity? To answer this question, this article draws on insights from implementation literature that point to factors such as incentives written into policy, the commitment of administrations and bureaucratic agencies, and few veto points in the chain of implementation. While this article does not challenge such findings, it suggests that we must look further back in the causal chain to understand what brings such facilitating conditions about. Through an examination of ethnodevelopment policy in Ecuador and Peru, I find that the strength of social movements is most responsible for creating the conditions that foster implementation. Neither civil society nor the state alone can bring about successful participatory policy implementation. Rather, strong social movements can make the state comply with its own laws.     

Measuring the Effectiveness of New Approaches to Housing Support Policy for Persons with Disabilities

Housing support policy for persons with disabilities who require access to 24‐hour formal or informal support is changing throughout Australia. This is consistent with international trends including: independent living in generic housing; facilitating choices about where and with whom people live; individualised home‐based support; and community integration. Are these trends leading to policies that are effective in the Australian context? This article presents a framework for analysing the effectiveness of new approaches to housing support using a rights perspective. The framework consists of four domains: client outcomes; administrative systems; service viability; and coordination between formal and informal carers. Applying the framework to six case studies found that they all aim to foster independence, while providing effective individualised, holistic housing support.