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The purpose of this paper is to examine the dark figure of crime among federal sex offenders from the USA to quantify crime victims and sex crime events among those with no official criminal record.

Using data on 119 offenders selected from a five-year census of sex offenders selected from a federal probation jurisdiction in the Midwestern United States, descriptive, partial correlations, and ROC-AUC models were conducted.

In total, 69 percent of offenders self-reported a contact sexual offense during polygraph examination. In total, 34 offenders had zero official record of sexual abuse but non-zero self-reported history of sexual abuse. These 34 clients offended against 148 victims that potentially denoted a minimum number of 148 sex crime events, a median number of 1,480 sex crime events, a mean number of 32,101 sex crime events, and a maximum number of 827,552 sex crime events. Total paraphilias were not predictive of self-reported sexual offending but were strongly associated with prolific self-reported sexual offending.

The dark figure of sexual offending is enormous and the revelation of this information is facilitated by polygraph examination of federal sex offenders. Ostensibly non-contact sex offenders such as those convicted of possession of child pornography are very likely to have a history of contact sexual offending. Consistent with the containment model, polygraph examinations of the sexual history of offenders convicted of sexual offenses should be required to facilitate public safety.

Studies have found innate vulnerabilities which potentially may increase the risk of an individual with autism spectrum disorders (ASD) finding themselves involved with the criminal justice system as a result of being charged with a sexual offence. The purpose of this paper is to evaluate the literature which has explored sexual offending in individuals with ASD.

A systematic PRISMA review (PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses) was conducted using internet-based bibliographic databases (PsycINFO, MEDLINE, Psychology and Behavioural Sciences Collection and PsycARTICLES) in order to access studies which investigated to any degree the association between ASD and sexual offending.

Only a small number of case reports (n=7) on sexual offending in individuals with ASD and a small number of prevalence studies (n=7) were identified.

Research is urgently required to identify the specific requirements and needs of sexual offenders with ASD in order to inform an appropriate treatment strategy for successful outcomes.

Relatively few studies and reviews have investigated the area of ASD and sexual offending specifically.

The purpose of this paper is to increase our understanding of the role of mental disorder in sexual offending as well as identifying innovations in assessment and treatment with offenders who present with these typically complex risks and needs.

The converging literatures on “good lives” and other developments in sexual offender treatment are compared with recovery from mental disorder and what is known about the particular needs and characteristics of sexual offenders with mental illness and severe personality disorder (PD).

A key outcome of this review is that many mentally disordered sexual offenders have similar needs to those in prison and the community but there are particular challenges posed by severe PD, paraphilias and the relatively rare individuals whose offending is functionally linked to psychotic symptoms.

Practical implications include the need for case formulation of complex needs related to mental disorder using direct and indirect measures of attitudes and interests. Treatment needs to be responsive to very different personality and mental health presentations as well as problems with offending and cognitive schemas. Direct functional links between mental health symptoms such as delusions and hallucinations are very rare in practice and are usually secondary to PD and sexual offending issues. In practice, treatment promoting recovery from mental disorder is highly compatible with the “good lives” approach to sexual offender treatment. Staff development, supervision and support are particularly important for staff treating mentally disordered sexual offenders.

It is argued that mentally disordered sexual offenders are an under-researched sub-group within the wider sexual offender population. This paper brings together the relatively limited literature on treatment with examples of recent treatment innovations, multi-modal assessment approaches and reviews of research on the needs of this relatively uncommon but highly risky group.

There are a limited number of risk assessment tools relevant to the internet child abuse material (I/CAM) offender cohort. The purpose of this paper is to introduce a new tool, the “Estimated Risk for Internet Child Sexual Offending” (ERICSO). The ERICSO has been developed to assist in the treatment and prevention of sexual crimes against children.

The ERICSO was developed through a multi-stage process including systematic review, survey of professionals and offender case study.

An empirically guided tool for estimating risk for I/CAM offenders, the ERICSO is composed of four domains. The Demographic domain questions provide information about the offender, while Collection domain questions address the content of the offender’s files. The Nature of Engagement domain considers the offender’s interaction with I/CAM, behavioural aspects and contact with children. The Social Aspect domain questions address the offender’s engagement with other I/CAM users. Finally, the assessor may use Structured Professional Judgement to provide additional information, and a summary of the offender’s relevant circumstances and a risk estimation.

The ERICSO provides guidance for the assessment of I/CAM offenders who may reoffend with online child sexual offences, and I/CAM offenders who may reoffend with contact child sexual offences.

Born from a history of generational attitudes towards rehabilitation and risk assessment, the launch of the ERICSO presents an exciting opportunity in the risk estimation of I/CAM offenders.

The purpose of this paper is to evaluate the ability of a comprehensive set of covariates to distinguish and predict juvenile sex offenders (JSOs) from non-sexual juvenile offenders (NSJOs) using demographic traits, criminality covariates, childhood trauma, and psychopathologies in a sample of male and female juvenile offenders in the USA.

A multivariate binary logistic regression will be conducted on a total of 64,329 juvenile offenders in Florida to determine what demographic, criminal history, childhood traumas, and psychopathologies make a difference in identifying sexual and NSJOs while controlling for the other key predictors in the model.

Results indicate that having an earlier age of criminal onset and more felony arrests, experiencing sexual abuse or being male, having low empathy, high impulsivity, depression, and psychosis all significantly increase the risk of sexual vs non-sexual offending among the male and female juvenile offenders, even while controlling for all other key covariates in the analysis.

This study uncovered many new findings regarding the key distinguishing traits of juvenile sex offending vs non-sexual offending, using a comprehensive list of predictors, a large sample of male and female offenders, and a rigorous statistical methodology.

The purpose of this paper is to identify the demographic characteristics, psychological and mental health difficulties, victimisation histories, and offending behaviours of New Zealand child pornography offenders (CPOs) who presented to community-based treatment. Findings are compared with national and international research, and with population norms. Such comparisons can help identify factors that may play a role in the development of child pornography (CP) consumption and potential treatment needs for this population.

A file audit of assessment information and service exit reports was conducted of 46 CPOs who were referred to community-based treatment service in New Zealand.

CPOs were predominantly male, European, and unemployed. Most CPOs were single or separated/divorced, and had no friends or one to five friends, which indicates possible social functioning difficulties, including intimacy. Mental health issues, such as depression and anxiety, loneliness, and childhood abuse appear to be elevated among CPOs in comparison with general population norms. Prior to referral, one-third had engaged in contact sexual offending and most had no non-sexual offending history. CP was often in the form of photos or images, and contained European pre-pubescent females. CPOs’ mental health, social isolation, intimacy deficits, and childhood abuse could be treatment targets for this population.

Limited research has been conducted concerning New Zealand CPOs. Furthermore, studies often do not compare findings with general population norms, which can help identify factors prevalent among the CPOs and treatment needs for this population.

There are limited risk assessment tools validated for use with the internet child abuse material (I/CAM) offender cohort. Developed through a multi-stage process, the purpose of this paper is to present the “Estimated Risk for Internet Child Sexual Offending” (ERICSO), a new tool for I/CAM offender assessment, including demographic, collection, nature of engagement and social domains, plus a structured professional judgement section. Validation studies remain ongoing.

This paper presents a case series analysis of six Australian men, including two Aboriginal men, convicted of I/CAM offences to pilot proposed ERICSO domains and commence validation against the short self-esteem scale, University of California Los Angles loneliness scale, internet sex screening test and the sexual violence risk-20 V2.

Participants of all ages generally reported histories of mental health diagnosis and/or treatment and substance abuse. Two participants reported prior sexual offending, one for I/CAM offences. Participants expressed sexual preferences for female child victims and were convicted of possessing thousands of I/CAM files. Two participants reported accessing I/CAM for over six and 10 years, respectively, before detection by law enforcement.

Preliminary implications indicate ERICSO higher scores are consistent with I/CAM offenders having more online sexual behaviour diversity and more areas of risk/treatment need. For example, participants with problematic self-esteem and loneliness in our data set have higher ERICSO scores. Social connectedness may be a relevant factor though definitive conclusions cannot be drawn from the small sample size.

The ERICSO presents novel assessment of factors in considering treatment targets in addressing both illegal I/CAM and problematic legal sexual behaviours.

This paper aims to explore treatment implications of the self‐regulation model (SRM) for sexual offenders with an intellectual disability in an effort to provide practical applications that could be employed in treatment.

The SRM of sexual offending proposes that difficulties in self‐regulation may lead to an increased risk of sexual offending; describing four potential pathways to sexual offending that are based on self‐regulation style and offence‐related goals. Research has focussed on the application and implications of this theoretical model for mainstream sexual offenders. However, more recently, there has been an increasing interest into the application and treatment implications for the SRM for sexual offenders with an intellectual disability. This paper reviews literature on both the SRM and related work on offenders with intellectual disability.

The evidence reviewed supports the notion that the SRM is a valid theoretical model on which to base treatment programmes for people with intellectual disabilities and specific recommendations are made for the design of treatment programmes with this client group.

It is suggested that this model should be used when devising intervention programmes for people with intellectual disabilities in the future.

This paper explores the link between sexual offending and antisocial personality. Drawing on previous research, it illustrates that sex offenders with an antisocial personality are a heterogeneous group, differentiated by several factors. They victimise children, adults or both, those who victimise adults or adults and children are more psychopathic. They are motivated primarily by non‐sexual factors like opportunistic impulsivity or generalised anger, and violence is a source of erotic pleasure in some cases. A small group of men, however, are driven to offend by sadistic sexual fantasies of a serious nature, which develop over time and later form the basis of their violent predatory assaults. Varying definitions of antisocial personality confuse the research, and diagnostic co‐morbidity means that pure psychopathic types are probably rare.

This review aims to focus on men who access, download, and circulate child abuse images across the internet as the most frequently occurring type of internet sex offender.

Some of the misconceptions associated with this behaviour are outlined and the extent to which internet offenders display some of the criminogenic factors thought to be associated with the multi‐factorial theories of sexual offending are reviewed.

One conclusion from this is paper is the general impression that internet offenders show many of the characteristics of paedophiles. Their theoretical importance is that they appear to be “desisters” from acting out their sexual interest in children by hands‐on offending.

It is argued that there is a need for more research to stimulate our understanding of this type of offender. Furthermore, what of those who both download material and offend directly against children? They present a dilemma for the literature as some research would suggest that they are not entirely like the internet or the contact sexual offenders in their psychological make‐up; they are the group most in need of reappraisal.