Child versus peer/adult offenders: A critical review of the juvenile sex offender literature

Sexual offenses are serious crimes and it is believed that adolescents perpetrate 20% of all sexual assaults and 50% of all child sexual abuse (Barbaree & Marshall, 2006). To better understand the etiology of juvenile sexual offending, researchers have explored differences between those who offend children versus those who offend peers/adults. This paper critically reviewed 21 studies that compared juvenile sex offenders who abused children with those who abused peers/adults on a variety of variables including victim, offense, and offender characteristics; psychosocial variables; and predictors and rates of recidivism. Strengths and weaknesses of these studies as well as future directions for the literature are discussed. Common methodological limitations of victim-age based comparisons of juvenile sex offenders included inconsistent definitions, low-powered studies, lack of standardized measures, and recidivism data based solely on conviction rates. Overall, many inconsistent findings limit our ability to give overarching conclusions; however, the research does suggests that not only is it important to examine child and peer/adult offenders, but mixed offenders (i.e., offender with both child and peer victims) as a distinct group need to be included in comparisons as well.     

Can we profile sex offenders? A review of sex offender typologies

Sex offenders constitute a heterogeneous population of individuals and can be classified into typologies based upon characteristics and motivations of offending. The most common classification systems are those differentiating between types of rapists, child molesters, female sex offenders, juvenile sex offenders and cyber sex offenders. Understanding the characteristics and motivations of sex offenders can lead to more effective treatment, supervision and management of offenders. This article outlines the development of sex offender typologies over the last quarter century.     

Simulated judicial decision-making for African and European American adolescents with illegal sexual behavior: The impact of medical data and victim race/ethnicity

The perceived importance of victim and defendant race/ethnicity and medical evidence in child sexual abuse cases has been recognized separately in the literature. However, few studies have considered these factors simultaneously. Within a sample of 880 college students, an interaction effect was tested between the presence of medical evidence and the race/ethnicity of a juvenile defendant and victim using child sexual abuse case vignettes. The main effects of medical evidence and the race of the defendant were observed. Medical evidence and race of victim influenced victim believability such that medical evidence was more impactful for cases with African American victims. Further, there were interactions between the race of the defendant and the race of the victim in adult versus juvenile court decisions, sex offender registration and notification requirements, and length of sex offender registration and notification. Interracial sexual offending was associated with substantially higher punishment than intraracial sexual offending. Accordingly, several important implications for court-level decision-making processes are explored.     

Sexualdelinquenz bei Schizophrenie

Studies suggest a complex relationship between schizophrenia and sexually offensive behaviour. This study aimed to preserve first findings of sex offence features and behaviours exhibited by psychotic men in Germany. Furthermore a typology of the schizophrenic offender group was developed. A comparative trial design was used to differentiate the psychotic and non psychotic offender group. A checklist was developed and applied to the records of 64 male restricted hospital order in-patients in Berlin with an index conviction for a contact sex offence against a woman. Social isolation, antisocial behaviour, psychosexual variables and adverse childhood experiences are found for schizophrenic and sexual offenders in general. Different sexual offensive behaviours appeared in the schizophrenic subgroups. Negative symptoms of schizophrenia as well as antisocial traits had a great impact on schizophrenic sexual offending. A heterogeneous group of psychotic offenders can be supposed.     

Characterization and Prediction of Sexual and Nonsexual Recidivism Among Adjudicated Juvenile Sex Offenders

Estimating the risk of sexual recidivism for a juvenile sex offender is essential in order to protect public safety by identifying and evaluating high risk adolescents and to ensure the rights and welfare of juvenile offenders who will not likely reoffend. Empirically validated risk assessment methods are needed to aid in the classification and treatment of juvenile sex offenders. The present study utilized a dataset collected by Maricopa County, AZ, and aggregated by the National Juvenile Court Data Archive. The purpose of the study was to evaluate and characterize risk factors for juveniles who have been charged with a sexual offense in order to determine the predictive utility of these factors for subsequent offending, as well as offense trajectory, and to evaluate risk factors for nonsexual offenders who have committed crimes of various severities. The results of the present study show the strongest individual predictors of sexual recidivism to be prior nonsexual offending, prior sexual offending, hands‐off offending, offending against a child, younger school grade/age at time of initial offense, Asian or Hispanic ethnicity, and not attending school. A preliminary screening measure was developed from the seven positive risk factors, and ROC analysis produced an AUC indicating moderate predictive utility in discriminating between juvenile sex offenders who would sexually reoffend and those who would not. Copyright © 2013 John Wiley & Sons, Ltd.     

Double Parricide: An In-Depth Look at Two Victim Homicides Involving Parents as Victims

The majority of studies examining the killing of parents and step-parents by biological and stepchildren involve a single victim and single offender. Little is known when parricide incidents involve multiple victims or multiple offenders. Using the National Incident-Based Reporting System (NIBRS), this study examined double parricide incidents involving single or multiple offenders over the 20-year period 1991–2010 with the aim of investigating juvenile and adult involvement. Forty-five incidents of double parricide were identified and verified; in 35 of these cases, the offenders acted alone. Frequencies reported include offender, victim, and incident characteristics. The results indicated that the typical double parricide offender who acted alone was a White male approximately 30 years of age. When multiple offenders were involved, the offenders tended to be younger and were more likely to include a female accomplice. Newspapers were utilized to augment available case information. Study limitations, implications, and directions for future research are also discussed. Copyright © 2015 John Wiley & Sons, Ltd.     

Girls Arrested for Murder: An Empirical Analysis of 32 years of U.S. Data by Offender Age Groups

Most studies on juvenile homicide offenders (JHOs) have used small samples and have concentrated on adolescent male offenders. As a result, little is known about the population of female juveniles arrested for murder. This study utilized the Supplementary Homicide Report (SHR) database to investigate age differences between younger (aged 6–12 years) and older (aged 13–17 years) females arrested for murder in the United States from 1976 to 2007. As predicted, six variables used to test seven hypotheses with respect to younger and older female JHOs in single victim incidents were significant (victim age, victim gender, victim offender relationship, murder weapon, offender count, and homicide circumstance). Regression analysis revealed that younger girls were seven times more likely than older girls to kill children aged 0–12 years. Girls aged 6–12 years were five times more likely than their teen counterparts to be involved in conflict‐related homicides as opposed to crime‐related homicides. Although approximately the same percentages of younger and older girls killed infants under the age of 1, the victims were significantly different for the two offender age groups. This article concludes with a discussion of our findings and directions for future research. Copyright © 2014 John Wiley & Sons, Ltd.     

Pathways in the offending process of sex offenders who target marginalised victims

Prior literature shows that although marginalised populations are at a high risk of severe violence and homicide, research has focused on their offenders as if they constituted a homogeneous group. On the basis of a sample of 213 sex offenders who targeted marginalised individuals (i.e., sex trade worker, homeless individual, and severe drug user), we investigate the different pathways that these offenders take both prior to and during the commission of their crimes. Results of 2‐step cluster analysis regarding the offender's development, criminal history, crime context, and modus operandi revealed 3 distinct pathways of the offending process. The coercive pathway was characterised by the amount of violence used against the victim. The explosive pathway was defined by offenders who were in a state of rage at the time of the offence. Finally, offenders in the situational pathway committed their crimes out of opportunity and used very little violence. Differences between pathways were investigated with regard to characteristics of the index offence.     

Behavioural Profiles and Offender Characteristics across 111 Korean Sexual Assaults

Although the potential usefulness of the offence action–offender characteristic (A–C) relationships is widely accepted and operational ‘offender profiling’ units now exist around the world, few such relationships have been empirically established. To explore this, the offending action patterns within 111 sexual assault cases from South Korea were coded in terms of 16 distinctive, objective crime scene criteria and subjected to an agglomerative hierarchical cluster analysis. Background psychiatric and general characteristics, Personality Assessment Inventory (PAI) scale scores, and criminal histories were described for each cluster. The cluster analysis drew attention to six clusters or behavioural profiles within the sexual assaults. Cluster 1 included serial offenders who aggressively raped and robbed adult women, with some pseudo‐intimate sexual behaviour, in their homes. Two thirds of these offenders had histories of sexual assault. Cluster 2 included offenders who again targeted adults in their homes, but without pseudo‐intimate sexual behaviour. Cluster 3 included offenders who targeted adults outdoors at night. These offenders showed high antisocial personality PAI scores and psychiatric histories of sexual sadism. Cluster 4 included unarmed offenders who targeted adults in their homes without robbery. These offenders often had psychiatric histories of depression. Cluster 5 included offenders who targeted adults outdoors with a blitz‐style attack, and Cluster 6 included offenders who targeted minors outdoors, without weapons, using a confidence‐trick style of approach. Paedophilia and histories of psychiatric treatment were prominent amongst these offenders. The results indicate therefore some of the key empirical relationships that future research may develop as the basis for sexual assault ‘profiles’. Copyright © 2014 John Wiley & Sons, Ltd.     

From Crime Scene Actions in Stranger Rape to Prediction of Rapist Type: Single‐Victim or Serial Rapist?

The differences in crime scene actions in cases of stranger rape committed by convicted offenders were examined between 31 single‐victim rapists and 35 serial rapists. Data were collected from police files, court verdicts, psychiatric evaluations, and criminal records. Findings indicate that the serial rapists were more criminally sophisticated than the single‐victim rapists, during their first and second rapes. The single‐victim rapists were significantly more likely to engage in the interpersonal involvement behavior of kissing the victim, and to engage in pre‐assault alcohol use, than the serial rapists. There was, however, no significant difference in physically violent or sexual behaviors. To investigate the possibility of predicting rapist type, logistic regression analyses were performed. Results indicate that three behaviors in conjunction, kissed victim, controlled victim, and offender drank alcohol before the offense, predicted whether an unknown offender is a single‐victim or serial rapist with a classification accuracy of 80.4%. The findings have implications for the classification of stranger rapists in offender profiling. Copyright © 2012 John Wiley & Sons, Ltd.     

Women’s Reporting of Physical Assaults to Police in a National Sample: A Brief Report

Research examining reporting decisions of women physically assaulted by any type of perpetrator is scarce. This study used data from the National Violence Against Women Survey (NVAWS) to examine how victim characteristics, assault characteristics, emotions during the assault, and postassault disclosure to informal social support sources affect victim and third-party reporting decisions in physical assault incidents. Results showed that victim education, race and ethnicity, victim–offender relationship, crime severity, perceived life threat, and disclosure to informal social support sources were related to victim reporting, whereas victim employment and marital status were associated with third-party reporting.     

Veränderungen kriminogener Faktoren bei Sexual- und Gewaltstraftätern in Sozialtherapie und Regelvollzug

In the evaluation of offender treatment programmes, recidivism is still the most common measure of success. However, positive effects concerning future delinquent behaviour do not prove that treatment led to changes in the targeted criminogenic risk factors. Furthermore, little is known about whether such changes differ among the various offender types. This study investigated changes in self-reported criminogenic personality patterns and cognitions in a sample of treated and untreated sexual and violent offenders. Specific prosocial changes in treatment targets, such as self-control, excitability and neuroticism were found but similar improvements were also found in untreated offenders. In addition, changes in measured risk factors did not differ between offender types, although self-control, aggressiveness and neuroticism showed significant interactions between offence type and treatment delivery. Whereas treated violent offenders exhibited more positive changes than untreated violent offenders, an inverse pattern was observed in the case of sex offenders. Minor specific treatment effects as well as the limitations of the administered psychometric instruments are discussed as possible explanations for these results.     

Female Juvenile Offending: A Review of Characteristics and Contexts

We reviewed current literature on female juvenile offending including the scope and nature of offending by female adolescents and the risk and protective factors across ecological contexts. We suggested that female juvenile offending is best viewed within a multidimensional framework in which female adolescent developmental characteristics as well as the ecological contexts must be considered for effective preventions and interventions. An ecological framework may assist professionals to target adolescent female offenders who are most likely to be chronic offenders. We offered both an intervention and research frame for addressing the issue of offending among our female youth and concluded that, as the incidence of female juvenile offending increases, researchers and practitioners are well advised to consider both the contexts surrounding the potential female adolescent offender as well as the contexts that contribute to her resiliency against offending.     

Reactions to youth crime: perceptions of accountability and competency

Recent changes in juvenile justice policies have stimulated debate among legal professionals and social scientists. As such, public opinion concerning juvenile offenders is an important and timely topic for empirical study. In the present study, respondents read a scenario about a juvenile who committed a crime, and then decided on a sentence and rated perceptions of the juvenile's accountability and legal competence. Four between-subject factors were manipulated: age of the defendant (11 versus 14 versus 17 years), type of crime (shooting versus arson), crime outcome (victim injured versus died), and time delay between the instigating incident and the crime (immediately versus one day). The type and outcome of the crime were major motivating factors in sentencing decisions and perceptions of legal competence, and, although younger offenders were seen as less accountable and less competent than older offenders, sentence allocation and attitudes towards punishment were not significantly affected by offender age.     

Application of the behavioral investigative support system for profiling perpetrators of serial sexual assaults

The authors developed a data-based profiling system in order to support offender profiling. The system stored incident records of prior offenders. Inputting offence details of an unsolved incident, a probability score was assigned to each prior offender in the system; the score represented the behavioral similarity with the unsolved incident. The system then ranked all offenders in the system according to the probability scores, and prioritized the high-ranked offenders as possible suspects. Moreover, the system inferred the characteristics of unknown offenders by accumulating characteristics of the high-ranked offenders. The system achieved promising accuracy, especially for linking crimes to perpetrators. In 45 out of 81 simulation trials, the target offenders were retrieved as a rank score of 1 from among 868 sex offenders.     

South African Serial Homicide: Consistency in Victim Types and Crime Scene Actions Across Series

Key to understanding the significance of behavioural evidence for linkage purposes is in establishing how consistently an offender displays the same or similar behaviours across their series. There have however to date been very few studies aiming at identifying salient components of offending behaviour that can be used reliably for linking individual crimes as part of a single series. In addition, studies that have been conducted have all dealt with serial homicide in the Western world and have been based on small samples of cases from each country. Some of the recent literature has started to disentangle some of these salient features, notably the victim, violence levels, control, and planning. The current study focused on evaluating the consistency of these features across series, using a sample of serial homicides from South Africa consisting of 30 offenders with a total of 283 victims and 235 crime scenes. Results indicate that the level of interaction with the victim may be influential to the stability or instability of offending patterns across the series. How offenders approach planning in their offence also showed a certain degree of consistency, with patterns of violence being the least consistent across the series of all components tested. Copyright © 2014 John Wiley & Sons, Ltd.     

A COMPARISON OF GROUP AND INDIVIDUAL SEXUAL ASSAULT VICTIMS

The experiences of 44 group sexual assault victims (multiple offenders, one victim) were compared with 44 individual sexual assault victims (one offender, one victim). Sexual assaults included various degrees of sexual victimization ranging from verbal coercion to rape. Participants were located from among a national sample of 3,187 college women. Group sexual assaults, compared to individual sexual assaults, were in general more violent, involved greater resistance from the victims, and were more likely to be perpetrated by strangers or relatives and to involve an experience which met the legal definition of rape. Group sexual assaults were less likely to involve multiple episodes by the same offender(s). Group sexual assault victims were more likely than individual sexual assault victims to seek police and crisis services, to have contemplated suicide, and to have sought therapy postassault. Despite these differences, the two groups were similar in the amount of drinking and drug use during the assault and their scores on standardized measures of psychological symptoms.