The identification of sexual and violent motivations in men who assault women: implication for treatment

A qualitative analysis of interview data with 41 rapists determined that five implicit theories (ITs) underlie rapists' offense supportive beliefs/feelings/motives: (a) dangerous world (DW)-where men have feelings of generalized anger and/or resentment toward others; (b) women are dangerous-where men hold a set of attitudes that are hostile toward women; (c) women as sexual objects (WSO)-where women are seen as primarily sexual objects; (d) male sex drive is uncontrollable-where sexual urges are seen all consuming; (e) entitlement-where men feel that they can do exactly what they want. Consideration of whether DW or WSO ITs were present or absent indicated that three main groups could be identified: Group 1: violently motivated-presence of DW and/or absence of WSO; Group 2: sexually motivated-presence of WSO and/or absence of DW; Group 3: sadistically motivated-presence of DW and WSO. These results are discussed in terms of treatment needs of rapists.     

Premilitary adult sexual assault victimization and perpetration in a Navy recruit sample

Female (n = 5,226) and male (n = 5,969) U.S. Navy recruits completed a survey assessing their premilitary histories of adult sexual assault (SA), defined as attempted or completed rape since the age of 14. The survey was completed under anonymous or identified conditions. Overall, 39% of women reported premilitary SA victimization and 13% of men admitted premilitary SA perpetration. As predicted, rates were significantly higher in the anonymous than in the identified condition. For the sample of women as a whole, marital status, ethnicity, and family income were associated with SA victimization; for men, only marital status was associated with SA perpetration. Compared to previous college samples, Navy recruits were more likely to have previous SA experience. Given the negative consequences associated with SA victimization and perpetration, the present study reinforces the desirability of developing additional treatment, education, and prevention programs to reduce the occurrence of SA among military recruits.     

Prosecuting sexual assault: A comparison of charging decisions in sexual assault cases involving strangers,acquaintances, and intimate partners

In this study of prosecutors' charging decisions in sexual assault cases, we test the hypothesis that the effect of victim characteristics is conditioned by the relationship between the victim and the suspect. We categorize the victim/suspect relationship as one involving strangers, acquaintances/relatives, or intimate partners, and we examine the effect of victim, suspect, and case characteristics on charging decisions in each type of case. The results of our analysis reveal that the effect of victim characteristics, with one exception, is confined to cases involving acquaintances and intimate partners. In these types of cases, prosecutors were less likely to file charges if there were questions about the victim's character or behavior at the time of the incident. In contrast, the victim's reputation and behavior did not affect charging in cases involving strangers; in those types of cases, prosecutors were more likely to file charges if the suspect used a gun or knife or if the victim was white. We conclude that stereotypes of “real rapes” and “genuine victims” continue to influence the charging decision in at least some types of sexual assault cases.     

Developmental and offence-related characteristics of different types of adolescent sex offender: A community sample

Abstract

Offence-related and developmental characteristics were compared in subgroups of a sample (n=184) of male sex offenders aged between 10 and 21 [mean=16.07; standard deviation (SD)=2.09] referred to a specialist community facility. Important differences were observed on key developmental and offence-related variables between adolescents who targeted peers/adults and those who targeted children. These differences support the validity of the distinction between these two groups. Much smaller subgroups with mixed (i.e. peer and child) victims, internet child pornography and indecent exposure offences are also described. The sample was followed-up for a mean period of 4 years 6 months (SD=30.5 months), during which a small number re-offended sexually (n=13) and many more re-offended non-sexually (n=90). Relationships between engagement with treatment and some background and offence-related variables were identified and these are discussed.     

DNA recovery from different evidences in 300 cases of sexual assault

Almost 60% of the DNA evidences analyzed in our laboratory correspond to sexual assault cases. With the aim to assess the efficiency of the DNA IQ System (Promega) in recovering the perpetrator DNA profile, the statistical analysis of results obtained in 300 casework was performed. In such cases, 850 evidence samples were processed. In 71% of the cases the perpetrator DNA profile was detected in at least one of the submitted casework samples, with a minimum of 13 STRs markers typed using the AmpFlSTR Identifiler PCR amplification kit (Applied Biosystem). When the suspect DNA profile was available, 67% matched with the evidence.With regard to the type of evidence, the best performance corresponded to panties, with more than 70% of success in recovering male profile, whereas the efficiency of vaginal swabs was almost 60%, with a higher incidence of victim/perpetrator mixed profiles.     

The relationship between attachment dimensions and emotion regulation in individuals who have committed sexual crimes

Using attachment theory as an explanatory theory for sexual offending, this cross-sectional study examined the relationship between attachment and emotion regulation capacities utilising data that were collected from 59 incarcerated adult male sex offenders. Attachment dimensions were measured using the Relationship Scales Questionnaire and the Adult Attachment Survey and emotion regulation capacities were measured using the Difficulties with Emotion Regulation Scale. Findings indicated subjects who were more anxiously attached demonstrated more deficits in emotion regulation. Implications for practice and research are discussed.     

Screen-printing ink transfer in a sexual assault case

Yellow plastic-like particles were discovered on the clothing and body of a sexual assault victim. These particles were later associated to an athletic jersey with flaking yellow screen-printed numbers and letters, worn by the suspect. Depending on its intended substrate, screen-print ink can vary in color and composition. Particles dislodged from screen-printed garments may exhibit fabric impressions. Screen-printed clothing, commonly encountered in forensic casework, should be viewed as a potential source of trace evidence.     

The relationship between physical and sexual abuse and drug use in a sample of juvenile detainees in Florida and a sample of committed youthful offenders in Colorado

The relationships between child physical and sexual abuse and illicit drug use are little understood and underinvestigated. Data gathered from a study of youths located in two different institutions for detained (Florida) and committed (Colorado) youthful offenders permitted an examination of this issue. The results indicate the youths' physical and sexual abuse experiences are significantly and positively related to their use of illicit drugs. The implications of these findings for further research are drawn.     

Vicarious trauma: a comparison of clinicians who treat survivors of sexual abuse and sexual offenders

This study compared vicarious trauma in a random sample of male and female clinicians who treat survivors (n=95) and those who treat offenders (n=252). A national survey was conducted with members of the Association for the Treatment of Sexual Abusers (ATSA) and the American Professional Society on the Abuse of Children (APSAC). These data were used to test the relative contribution of variables theorized to contribute to two vicarious trauma effects (avoidance and intrusions) using the Impact of Event Scale. The sample reported high levels of avoidance and intrusions. Variables associated with vicarious trauma differed based on client population served. Sequential regression analyses were used to examine theoretically derived variables. Implications for practice and further research are discussed.     

A psychometric comparison of internet and non-internet sex offenders from a community treatment sample

Abstract

This paper compares psychometric test assessments of 39 men convicted of internet sex offences with 39 convicted of contact offences against a specific victim. Higher rates of socially desirable responding were identified in the internet group, as well as higher rates of emotional loneliness and under assertiveness, although the latter two findings were not statistically significant. This group also achieved lower scores measuring external locus of control, which might reflect their generally higher levels of education and employment (identified from research carried out in tandem with this work). The internet group achieved lower scores on sexualized attitudes towards children, emotional congruence with children and empathy distortions with regard to victims of child abuse. Hence, although they exhibited the kinds of general personality problems exhibited by other sex offenders, they did not support attitudes that explicitly endorse or condone the sexual abuse of children. This paper presents some hypotheses about these results and identifies further research necessary to develop understanding about this new kind of sexually abusive behaviour.     

A comparison of sexual coercion experiences reported by men and women in prison

Comparisons were made between self-reports from 382 men and 51 women who had experienced sexual coercion while incarcerated. Victim data were obtained from a sample of 1,788 male inmates and 263 female inmates who responded to an anonymous written survey distributed in 10 midwestern prisons. Men reported that their perpetrators in worst-case incidents were inmates (72%), staff (8%), or inmates and staff collaborating (12%). Women reported that their perpetrators were inmates (47%) and staff (41%). Greater percentages of men (70%) than women (29%) reported that their incident resulted in oral, vaginal, or anal sex. More men (54%) than women (28%) reported an incident that was classified as rape. Men and women were similar in feeling depression; however, more men (37%) than women (11%) reported suicidal thoughts and suicide attempts (19% for men, 4% for women). Implications of results for prevention of sexual coercion in prison are discussed.     

Counseling services for battered women: a comparison of outcomes for physical and sexual assault survivors

Approximately 15% of married or cohabiting women and as many as 60% of battered women are raped at least once by their partners. This study compared community-based counseling outcomes of battered women with outcomes of women who were both raped and battered by their partners. Over time, both groups improved in wellbeing and coping. Although those both battered and raped progressed more in counseling, they had lower scores before and after counseling compared to women who were battered only. Implications for research and intervention are discussed.     

Identification of gestational trophoblastic disease in a sexual assault case

In this study, gestational trophoblastic disease (GTD) was observed by short tandem repeat (STR) typing from the aborted tissues in a sexual assault case. By histological screening, the fetal tissue could not be distinguished from the maternal tissue in this case. Therefore, five specimens were collected randomly from the aborted tissues for DNA analysis. STR typing was performed by the commercial ABI Identifiler kit. The results showed that three specimens were of the maternal origin, one was a mixture of the mother and male fetus, and the other one was of male fetal origin with partial triploid. Three alleles were identified in each locus of D8S1179, D7S820 and VWA for the fetal specimen. For these three alleles, one matched the maternal origin and the others matched the putative paternal origin (suspect). Analysis of the Y-STR by using the commercial ABI Y-Filer kit, the fetal types matched the types of the suspect. We reported the case of partial mole on forensic evidence and gave the valuable information from its identification.     

Epidemiological characteristics of male sexual assault in a criminological database

Sexual assault among males, compared with females, is understudied, and may also be significantly underreported. Past studies have relied primarily on population-based survey data to estimate the prevalence of sexual assault and associated health outcomes. However, survey-based studies rely primarily on self-reports of victimization and may not accurately estimate the true prevalence of male sexual assault victimization. In order to obtain a detailed assessment of sexual assault among males, criminological databases like the National Incident Based Reporting System (NIBRS) may provide an important and unique source of information. The objective of the current study was to use data from the 2001-2005 NIBRS to construct an epidemiological profile of sexual assault among males. Our results suggest that the incidence of sexual assault was higher among young males (less than 19 years of age), with approximately 90% of all cases being reported among members of this age group. Among males of all ages, forcible fondling and sodomy were the most prevalent forms of sexual assault. Results from additional analyses include age- and race-specific rates of male sexual assault, the prevalence and severity of injury, and time trends detailing incidence by time of the day and location of the incident. Our analyses show that sexual assault is experienced by males of all age groups. However, the rate of sexual assault is higher among younger males. Despite some limitations, results from this study suggest that NIBRS data may provide a important complement to survey data for understanding breadth and consequences of male sexual assault.     

Battered women who kill: A comparative study of incarcerated participants with a community sample of battered women

The present article examines demographic and background variables, psychosocial factors, critical incidents during childhood, battering incidents, and coping methods among 210 battered women. Based on in-depth interviews with a group of incarcerated battered women who had killed their batterers and a community sample of non-violent battered women, several key results were found. The vast majority of battered women who killed their abusive partners was much more likely than the community sample to: (1) have been sexually assaulted during childhood, (2) have dropped out of high school, (3) have an erratic work history of one to three unskilled jobs, (4) have cohabited with their partner, (5) experienced a drug problem, (6) have attempted suicide by drug overdosing, and (7) have access to the batterer's guns. The findings provide support for the increased probability of battered women killing their mates after they have encountered brutal and repeated assaults, death threats, failed in their attempts to escape through alcohol or drug abuse, and failed in their attempts to commit suicide.     

Hair transfers in sexual assault: a six-year case study

Associative head and pubic hair transfers can provide a circumstantial connection between persons and objects in sexual assault cases. The occurrence of reported hair transfers in one analyst's casework are presented.     

The relationship between the quantity of alcohol consumed and the severity of sexual assaults committed by college men

Researchers have suggested that intoxicated perpetrators may act more violently than other perpetrators, although empirical findings have been mixed. Past research has focused on whether or not alcohol was consumed, rather than the quantity consumed, and this may explain these inconsistent findings. The authors hypothesized that the quantity of alcohol consumed would have a curvilinear relationship to the severity of the assault. Data were collected from 113 college men who reported that they had committed a sexual assault since the age of 14. The quantity of alcohol that perpetrators consumed during the assault was linearly related to how much aggression they used and was curvilinearly related to the type of sexual assault committed. The quantity of alcohol that victims consumed during the assault was linearly related to the type of sexual assault committed. Strategies for improving assessment of alcohol consumption in sexual assault research are discussed.     

Evaluative approach to semen transfer in a case of alleged sexual assault: A case study

This paper demonstrates a logical framework for evaluating forensic evidence, first described by Cook et al. [1,2], using a casework example of an alleged sexual assault involving semen transfer. Here we show in real time how the case strategy can change with additional information and how to use available experience and published data to interpret the findings obtained, given the background information provided. The findings of the case are interpreted using the Bayesian approach and are reported by giving the strength of support of scientific findings for one proposition rather than a competing proposition, as per the European Network of Forensic Science Institutes (ENSFI) guideline for evaluative reporting. We believe that using this paper as a template will aid other Forensic Science Practitioners (FSP) to add value and weight to their work by assisting them in evaluating and interpreting their own findings.