Total and Marginal Cost Analysis for a High School Based Bystander Intervention

Costs of providing the Green Dot bystander-based intervention, shown to be effective in the reduction of sexual violence among Kentucky high school students, were estimated based on data from a large cluster-randomized clinical trial. Rape Crisis Center Educators were trained to provide Green Dot curriculum to students. Implementing Green Dot in schools (N = 13) randomized to the intervention, over five years, cost $1.6 M and included start-up ($58 K) and ongoing implementation ($1.55 M). Costs for adding a school ($25,510) were calculated based on the final year, where no start-up costs were incurred. Knowing the $25,510 cost estimate for adding Green Dot may be particularly useful for high school administrators or school boards when they were making economic decisions based on strong evidence of program effectiveness to reduce violence.     

Characteristics associated with rape attrition and the role played by scepticism or legal rationality by investigators and prosecutors

Abstract

This paper reports a multidimensional scaling analysis of features associated with rape attrition by identifying key aspects of the rape that are associated with loss of cases at the stages of police investigation, prosecutors’ considerations and in court. The research utilized a case-file analysis (n=105) consisting of all rapes reported to one division within a large UK urban police force by females over the age of 16 from April 1998 to April 2003. In addition, interviews were conducted with police officers and Crown Prosecutors to explore their understanding of the reasons why attrition occurs. The findings illustrate the extent to which prejudicial attitudes and legal logic influence police officers’ and solicitors’ modes of thinking and subsequently influence decisions for rape cases to proceed to court. Methodological and practical issues are considered.     

Differentiating sexual violence: A comparison of sexual homicide and rape

Abstract

The present study sought to identify consistent patterns in the actions of sexually violent offenders to determine whether sexual homicide and rape reflect different behavioral emphasis of a single thematic model of sexual assault. Crime scene behaviors of 74 (37 sexual homicides and 37 rapes) solved cases of sexual assaults were compared, and results of a multi-dimensional analysis revealed three thematic styles of interacting with the victim during a sexual assault (Exploit, Control, and Violent). Further analysis indicated that offender–victim interactions in sexual homicide and rape are predominantly distinguished by the degree of violence, such that behaviors associated with each type of offense were found to occur in two discrete areas along a single continuum. Findings are discussed in terms of producing a general framework for understanding sexual violent interactions.     

The development of a filter model for prioritising suspects in burglary offences

Abstract

This paper discusses the development of a filter model for prioritizing possible links in dwelling burglary. The filters utilize the central aspects of crime scene information that is available and accessible to investigators in burglary, namely geo-spatial, temporal, behavioural, and dwelling information. The proposed filters were analysed using a sample of 215 dwelling burglaries committed by 43 serial burglars (i.e. 5 offences each) in order to determine the sequence in which the filters should be considered in prioritizing possible linked offences. The results indicated that the following order (i.e. better performance to worse performance) was most effective at linking offences, utilizing: (1) geo-spatial information, (2) temporal aspects, (3) behavioural information and, lastly, (4) dwelling characteristics. Specifically, the results indicated that offences in close proximity to one another should be given priority. Further, any offence occurring within a 28-day span before or after the index offence should be given priority. The paper argues that behavioural and dwelling characteristics are less effective for linking than geo-spatial and temporal information because the former two aspects are influenced significantly by situational and contextual cues on offender decision-making.     

‘Look into my eyes’: can an instruction to maintain eye contact facilitate lie detection?

Abstract

Traditionally, research on offender profiling has investigated the relationships between offender behaviour and offender characteristics. However, evidence about offender behaviour is not the only evidence available at a crime scene. This study extends previous collaborative research between forensic scientists and psychologists (e.g. Bond & Sheridan, Journal of Forensic Science, 52, 1122–1128, 2007) to investigate how forensic science can assist in the psychological process of offender profiling. Specifically, the potential utility of footwear impression evidence in the task of offender profiling is investigated. Using 155 domestic burglaries, the consistency and homology assumptions underlying offender profiling were tested. Evidence supportive of both assumptions is reported. A multiple regression analysis identified significant relationships between cost of footwear and employment status, age of offender, and the relative deprivation of his/her residence.     

Reconstructing and sequencing behaviours in multiple perpetrator rape

Abstract

Much of the existing knowledge base of multiple perpetrator rape (MPR) comes from studies undertaken more than 20 years ago, and thus fails to integrate contemporary perspectives on sexual violence. The current study used Grounded Theory methodology to construct a holistic model of MPR from 15 victim accounts. The model of multiple perpetrator rape (MMPR) included both the actions of the perpetrators and the reactions of the victim in a temporal sequence of 13 categories, 9 of which had sub-categories that allowed for individual differences. Broad themes of MPR were then explored using a total of 101 cases. Each case was coded in the 9 sub-categories where individual differences were allowed from the model. An associative analysis of these sub-categories was then performed using Smallest Space Analysis. Two dominant themes were displayed. The Manipulate theme included two perpetrators who offended sequentially and socialised with the victim. The Force theme did not involve any social interaction, as the force and teamwork of the group enabled the victim to be physically overpowered.     

The impact of increasing vs. decreasing harassing behaviours on perceptions of hypothetical instances of repeated sexual harassment

ABSTRACT

Sexual harassment is a traditionally underreported crime. One factor that might affect perceptions and willingness to report harassment is its occurrence over time: harassing behaviours that gradually increase or decrease in severity over time might impact its perception. In the present research, 177 female participants read a series of daily scenarios about increasing, decreasing, or steady harassment, and completed measures regarding their perceptions of and willingness to report it. Participants displayed increases and decreases in negative reactions as harassment increased and decreased, respectively, suggesting that each instance of sexual harassment is interpreted independently of earlier harassing behaviours, and that early, strongly harassing behaviours have little impact on how subsequent instances of harassment are perceived. This explanation is supported by the similar ratings in the midpoint (day 4) of the scenario series, regardless of whether harassment was increasing or decreasing.     

Rape investigation and prosecution: Stuck in the mud?

Abstract

This paper evaluates the Stern Review of rape in the context of public responses to rape, in England and Wales. The piece is based on an anti-rape feminist approach and so weighs a woman-centred approach to rape responses against the mainstream justice model. Overall, the argument made is that nothing much is really changing in public responses to rape. The work outlines problems with the Stern contention that the conviction rates for rape need to be calculated differently, and takes issue with the claim that the “policies are right”. Stern's call for greater support for women who have been raped is welcomed, but the effectiveness of the review process itself is questioned. These discussions illustrate the process of attrition as it is variously understood by feminists and by Baroness Stern. It is suggested that reviews themselves may be little more than a dampener, brought in when claims for change create a need to be seen to be doing something. A preferred alternative might be some form of ongoing body, reviewing and challenging practice and policy; however, it is recognised that this could be difficult to achieve amid the current spending cuts. The paper then turns to evaluate trends in support for survivors and notes that the more “professional” models of the Sexual Assault Referral Centre and the Independent Sexual Violence Advisers have held sway for some time. However, under the new coalition, government funding is also being directed towards women-only Rape Crisis centres, and this move is warmly welcomed here. The work concludes that much does indeed remain the same, despite positive signs in terms of respect for this survivor-centred model.     

A study of stranger rapists from the English high security hospitals

Abstract

Heterogeneity hinders our understanding of sexual violence; but does this problem extend to stranger rape and, if so, would the construction of homogeneous subtypes advance our understanding of this crime and aid criminal investigations and clinical practice? To answer these questions, 41 stranger rapists from the English high security hospitals were examined using version 3 of the Massachusetts Treatment Centre rapist typology (MTC:R3) and multidimensional scaling (MDS). The MTC:R3 suggested that sexual desire and opportunism were the primary motivations for these men, but that proportionately more psychopaths were violent and sadistic. In accordance with previous research, the men experienced problematic childhoods and displayed high rates of criminality and psychiatric morbidity in adulthood. However, MDS found that rapist histories and offence behaviours generally divide into sexual and violent themes. These results have important implications for theory, criminal investigations and clinical practice.