Development of an instrument for assessing the quality of forensic evidence and expert testimony from three feature-comparison methods: DNA,voice, and fingerprint analysis

In a context of rising violence and long-lasting impunity, in 2008, Mexico's criminal justice system underwent a radical change from an inquisitorial model to an adversarial one, to make it more effective, transparent, and expeditious. The new system tasked judges with publicly determining the admissibility of forensic evidence, as well as assessing its technical quality and probative value—tasks for which they currently receive little to no training. With the aim of contributing to the consolidation of the adversarial model, a comparative framework—in the form of a checklist—of the analysis of fingerprints, DNA samples, and voice recordings was created. To do so, a review of the academic literature, published reports, and guidelines was performed. The collected data were synthesized and submitted to a panel of Mexican judges, who provided feedback on its adequacy. The framework focuses on the steps on which quality assurance of forensic evidence depends, organized in five discrete stages that span from the collection of samples at the scene of a crime to the presentation of evidence at trial, specifying the main technical criteria experts should state to allow a decision maker to examine its accuracy and reliability. Differences and commonalities among the three methods were identified, particularly in terms of how qualitative and quantitative analyses are performed in each. Besides its potential usefulness as an aid for judicial decision-making, the checklist could be a valuable resource for training programs aimed at judges, as well as quality assurance programs.     

Environmental predictability influences the relationship between virtues and antisocial/delinquent behavior

ABSTRACT

Despite the notion that characterizes criminals as lacking virtues or character strengths, evidence shows that people who engage in antisocial and delinquent behavior are not dissimilar in possessing character strengths as compared to the general population. Character strengths may be used to either do ‘good’ or ‘wrong’; so that the question is, what situation does direct this use to either choice? This study hypothesized environmental predictability may influence a person using their character strengths to inhibit antisocial or delinquent behavior. Two samples were examined, one consisting of individuals convicted of a criminal offense, and the other composed of non-convicted participants. Individuals responded to a series of instruments targeting virtues and character strengths, antisocial and delinquent behaviors, and environmental predictability in their environment –inferred from life-history strategy. In both groups, virtues were negatively and significantly associated with antisocial/delinquent behavior. A further test of the moderating and mediating influence of environmental predictability showed that this environmental dimension modified the aforementioned relationship, decreasing the inhibitory influence of virtues on antisociality. This means that, in predictable contexts, possessing (or lacking) character strengths is not important to inhibiting antisocial behaviors; however, in unpredictable environments virtues are useful to prevent antisociality and delinquent behavior.     

Effects of Insurance on Child Labour: Ex-Ante and Ex-Post Behavioural Changes

In this paper we analyse possible effects of insurance on child labour. First, we develop a theoretical model that separates effects of insurance with and without a shock taking place. We then empirically test the hypotheses derived from the model by analysing the extension of a health insurance product in urban Hyderabad in Pakistan. Consistent with the theoretical model we develop in this paper, the reduction in child labour caused by the extension is largely due to an ex-ante feeling of protection as opposed to an ex-post shock-mitigation effect.     

Of ‘Strong’ Leadership,Crisis Communication,and Pooper Scoopers: Change in the Queensland Public Service Under Newman

Governments have historically offered their workforce a public service bargain founded on stable pay and conditions and job security. However, while the Westminster system aims for public service employment to be protected from the whims of government, public servants are nonetheless affected by the political environment in which they operate and changes to this bargain can occur with a new government. This paper focuses on a Queensland public service change process that resulted in large‐scale forced redundancies, non‐renewal of temporary contracts, and legislative changes that nullified the provisions in job security, organisational change, and redundancy policies. Using communication as a lens through which to understand leadership, it examines how the government communicated with the public service about this organisational change, immediately before and after the 2012 election. In particular, through analysis of public and media commentary, speeches and Hansard records, it examines Premier Newman's change leadership and communication by contrasting pre‐election messages to the public service with post‐election messages about the public service and the justifications for change during this period of downsizing. This analysis is used to reflect on political leadership, communication, fair treatment, and trust in public service change.     

An Accelerated Analytical Process for the Development of STR Profiles for Casework Samples

Significant efforts are being devoted to the development of methods enabling rapid generation of short tandem repeat (STR) profiles in order to reduce turnaround times for the delivery of human identification results from biological evidence. Some of the proposed solutions are still costly and low throughput. This study describes the optimization of an analytical process enabling the generation of complete STR profiles (single‐source or mixed profiles) for human identification in approximately 5 h. This accelerated process uses currently available reagents and standard laboratory equipment. It includes a 30‐min lysis step, a 27‐min DNA extraction using the Promega Maxwell^®16 System, DNA quantification in <1 h using the Qiagen Investigator^® Quantiplex HYres kit, fast amplification (<26 min) of the loci included in AmpF?STR^® Identifiler^®, and analysis of the profiles on the 3500‐series Genetic Analyzer. This combination of fast individual steps produces high‐quality profiling results and offers a cost‐effective alternative approach to rapid DNA analysis.     

Bribing votes: A new explanation to the ``inequality-redistribution' puzzle in LDC's

The recent empirical literature on redistribution and developmentemphasizes two main evidences: (i) more redistribution generallyinduces higher growth rates and (ii) more inequality does notnecessarily increase the political demand for redistribution.These stylized facts are at odds with the correlations observedin developed countries. Several theoretical arguments can beadvanced to explain these puzzles. In this paper, it is shownthat ``vote purchases'' may be seen as an additional argument toexplain puzzle (ii). We formalize this idea and examine theconditions under which vote bribes may be an obstacle toredistribution (and thus to growth) in a developing economy.     

Only a Matter of Time? The Role of Criminal Competence in Avoiding Arrest

While prior research has shown that the probability of detection plays a role in the decision-making of many offenders, much less is known on offenders’ relative success in avoiding arrest. In this study, we draw from detailed criminal career data on 172 offenders involved in lucrative criminal activities to examine the role of criminal competence in the probability of being arrested in a given month. We examine a particular aspect of competence, criminal efficiency, which is defined as the ability to earn a relatively large amount of money for each crime committed. Our research design allows us to disentangle the effect of criminal efficiency as a static trait of offenders from the dynamic variations in efficiency that offenders experience over time. Results show that efficiency is a strong, negative predictor of arrest, both at the static and dynamic levels.