Rapid amplification of commercial STR typing kits

Forensic DNA typing is currently conducted in approximately 8–10 h. The process includes DNA extraction, quantitation, multiplex PCR amplification, and fragment length detection. Today's commercial multiplex short tandem repeat (STR) typing kits are not optimized for rapid PCR thermal cycling. Current protocols require approximately 3 h for amplifying a multiplex containing 15 STR loci plus amelogenin. With the continuing development of miniaturization technologies such as microfluidic and micro-capillary devices, there is a desire to reduce the overall time required to type DNA samples. Such miniature devices could be used for initial screening at a crime scene, at a border, and at airports. There is also the benefit of reducing the required PCR amplification time for labs typing single-source reference samples. Surveys of fast processing polymerases working in combination with rapid cycling protocols have resulted in the development of a ‘rapid’ PCR amplification protocol. Results are obtained in less than 36 min run on a standard peltier-based thermal cycler employing a heating rate of 4 °C/s. Capillary electrophoresis characterization of the PCR products indicates good peak balance between loci, strong signal intensity and minor adenylation artifacts. Genotyping results are concordant with standard amplification conditions utilizing a standard 3 h (non-rapid) thermal cycling procedure. The rapid assay conditions are robust enough to routinely amplify 0.5 ng of template DNA (with 28 cycles).     

Are We Getting Value for Money from Behavioral Interventions for Offenders? A Research Note Reviewing the Economic Evaluation Literature

Public expenditure on the criminal justice system represents a significant fiscal burden to government worldwide, making the economic evaluation of interventions aimed at improving justice outcomes critical to informing resource allocation. This study systematically reviews and assesses the scope and quality of economic evaluations of behavioral interventions aimed at reducing reoffending. Only seventeen studies met the inclusion criteria, with wide variation in methodological approaches, including differences in costing perspectives, study design, and the definition of cost and outcome measures. The majority of behavioral interventions for offenders remain unevaluated from an economic perspective, representing a significant evidence gap for informing cost-effective and efficient allocation decision. Based on the studies reviewed, economic benefit can be derived from investing in offender behavioral programs. However, whether this investment represents ‘value for money’ remains unclear. What is clear is that economic evaluations in the justice health sector lag behind research in other areas of public policy.     

Forms of Authority Beyond the Neoliberal State: Sovereignty,Politics and Aesthetics

Critical legal scholarship has recently turned to consider the form, mode and role of law in neoliberal governance. A central theme guiding much of this literature is the importance of understanding neoliberalism as not only a political or economic phenomenon, but also an inherently juridical one. This article builds on these conceptualisations of neoliberalism in turning to explore the wider historical, cultural and sociological contexts which inform the production of neoliberal authority. The papers in this collection were first presented at the symposium ‘Forms of authority beyond the neoliberal state’, held at the Griffith Law School in December 2017. They consider the role of the corporation, the site of the university, the politics of debt, the genre of prestige television, and the archic sources of state violence, in order to imagine forms of authority which lie beyond neoliberalism as an ideology and a set of practices, and the ensemble of institutions which constitute the neoliberal state. The contributions draw on social theory, philosophy, cultural studies, legal geography and political theology in exploring new possibilities for cultivating judgement through and beyond the sovereign, political and aesthetic terrains of neoliberal governance.     

State Power,the Politics of Debt and Confronting Neoliberal Authoritarianism

As an intellectual, economic, political and legal project, neoliberalism is not directed towards the rolling back of the state as an aim in itself. While its deregulatory tendencies, its commodification of public services and the undermining of systems of social welfare superficially suggest a generalised reduction in state power, it has been clear from the early 1980s that one of neoliberalism’s primary concerns has been the authoritarian reshaping of state power to engineer particular social outcomes, whether in criminal justice, the disciplining of organised labour, the militarisation of national territory and migration, or the extension and deepening of regimes of austerity. This article introduces the recent work of Maurizio Lazzarato, who has argued that the asymmetrical creditor-debtor relationship is now the archetype of contemporary, neoliberal social relations. Ultimately, Lazzarato’s perspective tends to exaggerate the totalising powers of finance capital and leads him to endorse a form of political voluntarism, which fails to address the role of the neoliberal state as a site for forms of authoritarianism which are not solely generated by the debt relation. As a response, it will be suggested that aspects of Nicos Poulantzas’s concept of ‘authoritarian statism’ can be used to both strengthen our understanding of the authoritarian characteristics of the neoliberal state, and to imagine possibilities for resisting its expressions of power.     

A 26plex Autosomal STR Assay to Aid Human Identity Testing*†

Abstract: A short tandem repeat multiplex assay has been successfully developed with 25 autosomal loci plus the sex‐typing locus amelogenin for a total of 26 amplified products in a single reaction. Primers for the loci were designed so that all of the amplicons present were distributed from 65 base pairs (bp) to less than 400 bp within a five‐dye chemistry design with the fifth dye reserved for the sizing standard. A multiplex design strategy was developed to overcome challenges encountered in creating this assay. The limits of the multiplex were tested, resulting in the successful amplification of a wide range of genomic DNA sample concentrations from 2 ng to as low as 100 pg with 30 cycles of PCR. The 26plex has the potential to benefit the forensic community for reference sample testing and complex relationship evaluation.     

Rail Franchises,Competition and Public Service

The use of franchises to deliver rail services has raised major problems. Franchises restrict competition in the market, whilst competitive bidding for franchises has met with difficulties, notably in relation to risk transfer and the recent use of short‐term contracts that have not been awarded competitively. Further, franchise agreements are detailed and highly stipulative and do not achieve the flexibility and opportunities for innovation originally intended. This reflects an underlying lack of trust resulting from the arrangements adopted on privatisation. By contrast, in Sweden regional services have been procured through contracts with limited risk transfer, and in Italy provision of services has been entrusted to a dominant operator with comparatively limited detailed service specifications; both seem to have been more successful. For the future in the UK, possibilities include greater use of competition, a return to public ownership, regionalisation, and the use of concessions with limited risk transfer to secure stability.     

Development of a GC-MS method for the simultaneous analysis of latent fingerprint components

Latent fingerprint residue is a complex mixture of organic and inorganic compounds. A full understanding of the composition of this mixture and how it changes after deposition is lacking. Three solvent systems were compared for the simultaneous extraction and derivatization with ethyl chloroformate of selected amino and fatty acids from a nonporous substrate (Mylar for subsequent analysis by gas chromatography-mass spectrometry. A solvent system comprised of sodium hydroxide, ethanol, and pyridine was found to be the most effective. This method was applied to the analysis of latent fingerprint residue deposited on Mylar and preliminary data are presented. Twelve amino acids (e.g., serine, glycine, and aspartic acid) and 10 fatty acids (e.g., tetradecanoic, hexadecanoic, and octadecanoic acids) were identified. The potential application of this method to further the understanding of latent fingerprint chemistry has been demonstrated.     

Splitting the Difference? Causal Inference and Theories of Split-party Delegations

Matthew J. Butler Department of Economics, 549 Evans Hall, University of California, Berkeley, CA 94720 e-mail: butler{at}econ.berkeley.edu e-mail: daniel_butler{at}stanford.edu (corresponding author) We provide an introduction to the regression discontinuity design(RDD) and use the technique to evaluate models of sequentialSenate elections predicting that the winning party for one Senateseat will receive fewer votes in the next election for the otherseat. Using data on U.S. Senate elections from 1946 to 2004,we find strong evidence that the outcomes of the elections forthe two Senate seats are independent.