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521.
Kate?J.?BowersEmail author Shane?D.?Johnson Alex?F.?G.?Hirschfield 《European Journal on Criminal Policy and Research》2004,10(4):285-308
A new situational crime prevention measure recently introduced into Great Britain involves the fitting of gates to alleyways running along the back of terraced properties to restrict access to local residents and reduce opportunities for offenders. A number of quantitative techniques were used to assess the success of the intervention in reducing burglary in the City of Liverpool. The results demonstrate that, relative to a suitable comparison area, burglary was reduced by approximately 37%, there was a diffusion of benefit to properties in the surrounding areas, and the scheme was cost beneficial with a saving of £1.86 for every pound spent. The analyses provide persuasive evidence that these reductions were attributable to the intervention. We argue that the methodological techniques demonstrated here can be applied more widely to crime prevention evaluations. 相似文献
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Comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC x GC-TOFMS) for drug screening and confirmation 总被引:1,自引:0,他引:1
Comprehensive two-dimensional gas chromatography (GC x GC) is applied to analysis of drug standard mixtures containing 78 drugs of interest in forensic samples. For this study, underivatised drugs were employed. While several of the drugs were not detected at the low concentrations employed in the samples, most could be satisfactorily assigned their first and second dimension retentions in the GC x GC retention plane. For this study, time-of-flight mass spectrometry (TOFMS) detection was used. The enhanced separation possible in GC x GC is demonstrated, and typical linearity and apparatus precision are shown for tramadol, diazepam, olanzapine and desipramine using selected qualifier ions. Mass spectral library search quality for the detection of drugs in a selection of authentic forensic cases, along with retention position in the 2D retention plane, is used to support positive identification of the presence of the drugs. The analysis of 'difficult' drugs paracetamol and phenytoin is shown to produce anomalous chromatographic peak shape in the 2D plane, whereas most drugs gave acceptable peak shapes. The GC x GC technique was applied to screening drugs in forensic samples, with either flame ionisation (FID) or TOFMS detection, and compared favourably with conventional single column GC-MS analysis when tested for diazepam in an authentic forensic study. 相似文献
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Greg?PogarskyEmail author Alex?R.?Piquero Ray?Paternoster 《Journal of Quantitative Criminology》2004,20(4):343-369
Deterrence theory describes a process of offender decision making that consists of two linkages—one in which official sanctions and other information affect a would-be offenders perceptions about the risks of criminal conduct, and another in which such perceptions influence the decision whether or not to offend. Decades worth of empirical research has concentrated virtually exclusively on this latter linkage, and in so doing, has produced an incomplete account of the deterrence process. This article develops a model of how perceptions of sanction certainty are modified in response to an individuals involvement in criminal activity and the consequences (if any) therefrom. Implications of the model are tested with data from a multi-wave, panel survey of 1,530 high school students from the southeastern U.S. Key findings include: the manner in which new information affects perceived certainty depends on the level of perceived certainty before the new information is received, and the extent of peer offending was one of the most influential factors in determining change in perceived sanction certainty over time. 相似文献
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Self-Control,Violent Offending,and Homicide Victimization: Assessing the General Theory of Crime 总被引:2,自引:0,他引:2
Alex?R.?PiqueroEmail author John?MacDonald Adam?Dobrin Leah?E.?Daigle Francis?T.?Cullen 《Journal of Quantitative Criminology》2005,21(1):55-71
Criminologists have long recognized that offending and victimization share common ground. Using Gottfredson and Hirschis general theory of crime, with its emphasis on self-control as a theoretical backdrop, we examine the extent to which self-control is related to both violent offending and homicide victimization. To examine this issue, we use 5-year post-parole data on violent offending and homicide victimization from a sample of parolees from the California Youth Authority. Using rare-events logistic regression models, results indicate that self-control is related to each outcome, but that other risk factors are also uniquely related to each outcome. The implications of this study for theory and future research are addressed.To whom correspondence should be addressed: Department of Criminology, Law and Society, University of Florida, P.O. Box 115950, 201 Walker Hall, Gainesville, FL 32611-5950; Phone: +1-352-392-1025, ext. 213; E-mail: apiquero@ufl.edu 相似文献
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Suraje?DessaiEmail author E.?Lisa?F.?Schipper Esteve?Corbera Bo?Kjellén María?Gutiérrez Alex?Haxeltine 《International Environmental Agreements: Politics, Law and Economics》2005,5(2):105-124
From 1 to 12 December 2003, the Ninth Session of the Conference of the Parties to the United Nations Framework Convention took place in Milan, Italy. This conference continued the laborious effort of developing an international climate regime by preparing for the Kyoto Protocol’s entry into force. Some two dozen decisions were adopted on a wide range of options for responding to climate change. This paper assesses the progress achieved at the conference on a number of issues. Among these were operational details for implementing forestry projects under the Convention’s Clean Development Mechanism, and guidelines for reporting on greenhouse gas emissions and removals from agriculture, forestry and land-use change. Parties also decided on rules with respect to two funds, the Special Climate Change Fund and the Least Developed Country Fund. With respect to developing countries, Parties continued discussions on rules for building response capacity in light of the expected adverse effects of climate change and transferring environmentally sound technology. They also discussed how to incorporate scientific advice from the Third Assessment Report of the Intergovernmental Panel on Climate Change into the negotiations. Although Russia did not ratify the Kyoto Protocol prior to the conference, Milan demonstrated momentum and interest among Parties to support the climate regime. Nevertheless, it is doubtful whether the detailed discussions were able to contribute to preparing for the long term. To this end, this paper concludes that more discussion and leadership is required to bridge the North/South gap if a post-2012 climate regime is to stand. 相似文献
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