Area characteristics and regional variates as determinants of area property crime levels

This article seeks to examine the area characteristics that act as determinants of area property crime levels, namely, incidence and prevalence. The crime figures are extracted from the 1984 British Crime Survey. Area characteristics are taken from the 1981 UK census. Initial exploratory analysis considers the non-Gaussian nature of the crime data, the statistical implications of this, and the transformations used to overcome these problems. In addition, possible regional and inner-city/non-inner-city variations are considered. The later stages move from simple individual correlations to multiple regression models. Three regression models are considered and the reasons for refining these are explored, with the results indicating that both area characteristics and regional influences play a role as determinants of the area crime level. In particular, population density and the area population age profile have significant roles to play. The conclusions support the recent revival of the application of ecological concepts in the analysis of crime levels.     

Improving evaluation of anti-crime programs: Summary of a National Research Council report★

This article summarizes a report of the National Research Council: Improving Evaluation of Anti-crime Programs. It is based on a workshop, held in September 2003, in which participants presented and discussed examples of evaluation-related studies that represent the methods and challenges associated with research at three levels: interventions directed toward individuals; interventions in neighborhoods, schools, prisons, or communities; and interventions at a broad policy level. The article, and the report on which it is based, is organized around five questions that require thoughtful analysis in the development of any evaluation plan: What questions should the evaluation address? When is it appropriate to conduct an impact evaluation? How should an impact evaluation be designed? How should the evaluation be implemented? What organizational infrastructure and procedures support high quality evaluation? The authors highlight major considerations in developing and implementing evaluation plans for criminal justice programs and make recommendations for improvement of government funded evaluation studies.     

Results of a collaborative study of the EDNAP group regarding the reproducibility and robustness of the Y-chromosome STRs DYS19, DYS389 I and II, DYS390 and DYS393 in a PCR pentaplex format

A collaborative exercise was carried out by the European DNA Profiling Group (EDNAP) in the frame work of the STADNAP program, i.e. standardization of DNA profiling in Europe, in order to evaluate the performance of a Y-chromosome STR pentaplex, which includes the loci DYS19, DYS389 I and II, DYS390 and DYS393 and to determine whether uniformity of results could be achieved among different European laboratories.Laboratories were asked to analyze the five Y-STRs using singleplex and multiplex conditions in three bloodstains and one mixed stain (95% female and 5% male).All the laboratories reported the same results even for the mixed stain included in the exercise. This demonstrates the reproducibility and robustness of Y-chromosome STR typing even with multiplex formats and proves the usefulness of Y-STR systems for analyzing mixed stains with a male component.A total of 930 male samples from 10 different populations from Europe were also analysed for all the loci included in the pentaplex. Eight of these ten populations also included haplotype data.As for single gene analysis, haplotype diversity was higher in Germany and Italy and lower in Western European countries and Finland.Pairwise haplotype analysis shows the Finnish departure from the rest of the populations and a relatively homogeneity in the other European populations with F(ST) estimates lower than 0.05.UPGMA analysis shows an association of Western European population (Ireland, UK, Portugal and Galicia) on the one hand and central European populations on the other.     

Not yet a democracy: establishing civilian authority over the security sector in Brazil – lessons for other countries in transition

Brazil is considered one of the more successful examples of democratic transition and consolidation in the developing world; and one of the fastest developing and emerging countries. This article contends that Brazil is not yet a fully established democracy, because it lacks the proper civilian checks and balances ensuring full authority over the armed forces, police and secret services. There are five main reasons for this: first, the Constitution does not provide a generalised guide for the institution of civilian oversight. Second, a change of cultural perceptions vis-à-vis the security sector entities is needed. Third, piecemeal rather than holistic or comprehensive legal and institutional transformation has occurred, with little civilian oversight of the armed forces. Fourth, the large structures still held by each of the armed forces require re-articulation and fundamental transformation. Finally, there is no fully fledged civil society participation in security sector life through the media and academia. These problems weaken democracy in Brazil. The course of democratisation in Brazil and the role the security sector played in the transition are examined before discussion of some of the more recent legal and political developments in the security sector, as part of the democratic consolidation. The conclusion presents insights from Brazil’s experience and lessons for states facing similar transition challenges.     

A comparative analysis of media reports of U.S. parricide cases with officially reported national crime data and the psychiatric and psychological literature

This article is a content analysis of 150 unique cases of children killing parents in the United States as reported in the electronic news media. The accuracy of online coverage of U.S. parricide incidents is assessed using two types of resources: officially reported national statistics on known parricidal incidents and the psychological and psychiatric literature on matricide and patricide. Comparisons of news accounts of media-reported U.S. parricide cases with Supplementary Homicide Report data indicate that electronic media coverage of parricide cases focused on the more sensational and unusual parricides. Analyses of these media accounts by offender age found 13 significant differences between juvenile and adult offenders. Ten of these 13 differences related to motive and Heide's parricide offender types (severely abused, severely mentally ill, and dangerously antisocial) and were consistent with the mental health-related literature in this area. The limitations and directions for future research are discussed at length.     

Differences in the Validity of Self-Reported Drug Use Across Five Factors: Gender,Race, Age,Type of Drug,and Offense Seriousness

This study expands our knowledge about the validity of self-reported drug use by examining how gender, race, age, type of drug, and offense seriousness interact to affect the validity of self-reported drug use. This study also provides a conceptual framework that can be used to examine the validity of self-reported drug use. Differences in the validity of self-reported drug use are explained by examining differences in underreporting and overreporting. Differences in underreporting and overreporting are then further examined while controlling for differences in base rates of drug use. As shown, whether one controls for base rates of use may drastically affect estimates of underreporting and overreporting. By using hierarchical loglinear, logit, and logistic regression models with the Drug Use Forecasting data, we show that Black offenders provide less accurate self-reports than White offenders. Black offenders do so because they are more likely to underreport crack/cocaine use than White offenders. This difference, however, disappears once differences in base rates are controlled. A Black offender who tests positive is not more likely to underreport crack/cocaine use than a White offender who tests positive. Black offenders are also more likely to overreport both marijuana and crack/cocaine use relative to White offenders. Contrary to the first, this difference is not attributable to a difference in base rates. Methodological and substantive implications of this distinction are discussed. No differences across gender, age, or offense seriousness were found.

Characteristics of Callers to the Domestic Abuse Helpline for Men

Intimate partner violence (IPV) by women against men has been the subject of much debate. Feminists typically argue that IPV is committed only by men against women. Others argue that violence is a human problem and women also commit much IPV. To resolve these debates, IPV has been classified into two categories: common couple violence captured by population-based studies, and patriarchal terrorism, captured by studies of battered women. This typology ignores male victims of extreme IPV. The current study addresses this omission by describing 190 male callers to the Domestic Abuse Helpline for Men. All callers experienced physical abuse from their female partners, and a substantial minority feared their wives’ violence and were stalked. Over 90% experienced controlling behaviors, and several men reported frustrating experiences with the domestic violence system. Callers’ reports indicated that their female abusers had a history of trauma, alcohol/drug problems, mental illness, and homicidal and suicidal ideations.

A Study of PCR Inhibition Mechanisms Using Real Time PCR*,†

Abstract: In this project, real time polymerase chain reaction (PCR) was utilized to study the mechanism of PCR inhibition through examination of the effect of amplicon length, melting temperature, and sequence. Specifically designed primers with three different amplicon lengths and three different melting temperatures were used to target a single homozygous allele in the HUMTH01 locus. The effect on amplification efficiency for each primer pair was determined by adding different concentrations of various PCR inhibitors to the reaction mixture. The results show that a variety of inhibition mechanisms can occur during the PCR process depending on the type of co‐extracted inhibitor. These include Taq inhibition, DNA template binding, and effects on reaction efficiency. In addition, some inhibitors appear to affect the reaction in more than one manner. Overall we find that amplicon size and melting temperature are important in some inhibition mechanisms and not in others and the key issue in understanding PCR inhibition is determining the identity of the interfering substance.