Spousal violence: Police officer attitudes and arrest response

Conclusion On the 15 propositions, three propositions were found to support the general hypothesis. The findings indicate that as police officers showed an increase in attitudes supporting spousal violence the following occurred: (a) “frequent calls for police assistance from the household” became less important to police officers who were deciding to arrest; (b) “Jail overcrowding” became more important to police officers who were deciding not to arrest; and (c) “participant’s first encounter with the police” became more important to police officers who were deciding not to arrest. The other 12 propositions did not support the general hypothesis which suggested that the priority of all extralegal factors would relate to the ABUSE score.     

Determination of Fracture Patterns in Glass and Glassy Polymers,

The study of fractures of glass, glassy‐type materials, and plastic has long been of interest to the forensic community. The focus of this interest has been the use of glass and polymer fractures to associate items of evidence under the assumption that each fracture is different. Generally, it is well‐accepted that deviations exist; however, the emphasis has been on classifying and predicting fracture rather than determining that each fracture is different. This study documented the controlled fracture patterns of 60 glass panes, 60 glass bottles, and 60 plastic tail light lens covers using both dynamic impact and static pressure methods under closely controlled conditions. Each pattern was intercompared, and based on the limited specimens tested in this study, the results illustrate that the fracture patterns are different. Further repetitive studies, under controlled conditions, will be needed to provide more statistical significance to the theory that each fracture forms a nonreproducible fracture pattern.     

Emotion Regulation in Police Officers Following Distress: Effects of Tenure and Critical Incidents

This study focuses on the functionality of emotion regulation of police officers who have or have not experienced a work-related critical incident. Traumatic events experienced by police officers may have long-lasting and significant consequences, including health concerns, emotional difficulties, impairment in social functioning, and they may have an impact on work performance. The hypotheses outline the expected results to include higher scores for officers who had been involved in one or more critical incidents in emotional well-being concerns and more difficulties with emotion regulation as compared to officers who had not experienced a critical incident. The research design employs written instruments including the General Health Questionnaire-30 to measure general emotional well-being, the Impact of Events Scale to measure the impact of a past traumatic event, and the Difficulties in Emotion Regulation Scale to measure current problems with emotion regulation. Participants consist of 76 full-time police officers assigned to patrol in two police agencies. The findings, analyzed through analysis of variance, did not include significant differences between those groups as expected; however, there were unexpected findings. These findings were that although newer officers were less likely to have experienced one or more work-related critical incidents, they measured higher in measures of emotion regulation difficulties and concerns regarding emotional well-being than did the more tenured officers. The social implications of this study include increased officer and agency awareness and increased use of effective intervention. Implications for future study include the need to further explore emotional challenges that may be experienced by new police officers.     

Compulsory voting and the dynamics of partisan identification

Compulsory rules are known to have far‐reaching effects beyond boosting electoral participation rates. This article examines the relationship between compulsory voting and partisan attachments. A theory of attachment formation and strength is engaged that argues that compulsory voting boosts the likelihood that one will identify with a party and, in turn, the strength of party attachments among identifiers. The statistical model accounts for both the hierarchical structure of the data (individuals in elections) and the dual nature of the dependent variable (individuals report a strength of attachment only for the party with which they identify). Using data from the Comparative Study of Electoral Systems, it is demonstrated that compulsory voting does indeed increase both the incidence and the strength of partisanship.     

The Development and Application of Random Match Probabilities to Firearm and Toolmark Identification

The field of firearms and toolmark analysis has encountered deep scrutiny of late, stemming from a handful of voices, primarily in the law and statistical communities. While strong scrutiny is a healthy and necessary part of any scientific endeavor, much of the current criticism leveled at firearm and toolmark analysis is, at best, misinformed and, at worst, punditry. One of the most persistent criticisms stems from the view that as the field lacks quantified random match probability data (or at least a firm statistical model) with which to calculate the probability of a false match, all expert testimony concerning firearm and toolmark identification or source attribution is unreliable and should be ruled inadmissible. However, this critique does not stem from the hard work of actually obtaining data and performing the scientific research required to support or reject current findings in the literature. Although there are sound reasons (described herein) why there is currently no unifying probabilistic model for the comparison of striated and impressed toolmarks as there is in the field of forensic DNA profiling, much statistical research has been, and continues to be, done to aid the criminal justice system. This research has thus far shown that error rate estimates for the field are very low, especially when compared to other forms of judicial error. The first purpose of this paper is to point out the logical fallacies in the arguments of a small group of pundits, who advocate a particular viewpoint but cloak it as fact and research. The second purpose is to give a balanced review of the literature regarding random match probability models and statistical applications that have been carried out in forensic firearm and toolmark analysis.     

Predicting Recidivism Amongst Sexual Offenders: A Multi-site Study of Static-2002

The predictive accuracy of Static-2002 (Hanson & Thornton, Notes on the development of Static-2002 (Corrections Research User Report No. 2003-01), 2003) was examined in eight samples of sexual offenders (five Canadian, one U.S., one U.K., one Danish; total sample of 3,034). Static-2002 showed moderate ability to rank order the risk for sexual, violent and general (any) recidivism (AUCs of .68, .71, and .70, respectively), and was more accurate than Static-99. These findings support the use of Static-2002 in applied assessments. There were substantial differences across samples, however, in the observed sexual recidivism rates. These differences present new challenges to evaluators wishing to use actuarial risk scores to estimate absolute recidivism rates.