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The purpose of this paper is to investigate whether aggression and substance use assessed during treatment differ based on risk level for substance-using male offenders of intimate partner violence (IPV).

Secondary analyses were conducted using data from Easton et al.’s (2017) study on substance-dependent IPV offenders. A cluster analysis was utilized in order to classify participants into typology groups. Analyses of covariance were conducted in order to determine group differences in aggression and substance use during treatment.

The paper provides results-related response to treatment based on offender typology. Results appear to reflect two typology groups with significant differences in psychopathy among groups. High-risk offenders demonstrated higher rates of violence throughout treatment compared to moderate- and low-risk offenders; however, no differences in substance use outcomes were found.

A limitation of the study is the extent to which the results can be generalized beyond substance using IPV offenders. Further investigation of treatment outcomes including alternate measures is needed in order to better translate theoretical typologies to clinical settings.

Results provide support for differentiating treatment for substance-using male offenders of IPV based on typology as those with low/moderate risk level appear to be distinctly different and have different treatment outcomes compared to high risk level offenders.

Although the relationship between risk level and treatment outcomes has been researched with Drug Court Offenders, treatment outcomes based on typology has not been evaluated among substance using male offenders of IPV.

The purpose of this paper is to identify offender typologies based on aspects of the offenders’ psychopathology and their associations with crime scene behaviours using data derived from the National Confidential Enquiry into Suicide and Safety in Mental Health concerning homicides in England and Wales committed by offenders in contact with mental health services in the year preceding the offence (n=759).

The authors used multiple correspondence analysis to investigate the interrelationships between the variables and hierarchical agglomerative clustering to identify offender typologies. Variables describing: the offenders’ mental health histories; the offenders’ mental state at the time of offence; characteristics useful for police investigations; and patterns of crime scene behaviours were included.

Results showed differences in the offenders’ histories in relation to their crime scene behaviours. Further, analyses revealed three homicide typologies: externalising, psychosis and depression.

These typologies may assist the police during homicide investigations by: furthering their understanding of the crime or likely suspect; offering insights into crime patterns; provide advice as to what an offender’s offence behaviour might signify about his/her mental health background. Findings suggest information concerning offender psychopathology may be useful for offender profiling purposes in cases of homicide offenders with schizophrenia, depression and comorbid diagnosis of personality disorder and alcohol/drug dependence.

Empirical studies with an emphasis on offender profiling have almost exclusively focussed on the inference of offender demographic characteristics. This study provides a first step in the exploration of offender psychopathology and its integration to the multivariate analysis of offence information for the purposes of investigative profiling of homicide by identifying the dominant patterns of mental illness within homicidal behaviour.

Previous criminological research has examined the causes and correlates of violent juvenile offending, but failed to explore the developmental taxonomies of crime throughout history. Theoretically, developmental trajectories of offending (i.e. life‐course persistent and adolescence‐limited offenders) should be identifiable irrespective of time and place. This study aims to examine the pre‐offense characteristics of nineteenth‐century American parricide offenders.

Using archival records of two major newspapers (New York Times, Chicago Tribune), the study examines 220 offenders who committed attempted and completed parricides during the latter half of the nineteenth century (1852‐1999).

Results reveal that a small group of adult parricide offenders displayed antisocial tendencies at an early age that persisted into adulthood. These findings are consistent with the developmental literature, thus providing support for identification of pre‐offense characteristics of parricide offenders across historical periods.

The findings reported in this paper are of value to psychologists, historians, and criminologists, for they illuminate the similarities in predictors related to violent behaviors in a small subsection of adult offenders across two centuries.

Intimate partner violence (IPV) perpetrated by women is an infrequently discussed topic. The lack of knowledge about female perpetrators of IPV results institutionally in insufficient prevention training and discursively in inadequate appreciation of the women's realm. Thus, this chapter will examine the debates on female IPV in the area of tension between violence prevalence research and the gender-based approach in social sciences and shows that female IPV as a women's reality of life is not limited to resistance violence and is far more complex. By collecting data from 58 female IPV cases, the author develops a typology of female offenders of IPV. Case files documented by the counsellors at violenTia, a German counselling specialist working with women perpetrating violence in their partnership, were examined. The counsellors' notes in the case files were analysed by methods of the empirically grounded type construction, that is the notes were thematically coded and dimensionalised and the case files were grouped according to empirical regularities, followed by an analysis of the contexts of meaning, the type construction and the characterisation of the types constructed. As per the findings, four types (1–4) and one subtype (3′) of female IPV were developed. The main dimensions of the typology are the structure of violence (asymmetrical/symmetrical), the pattern of violence (systematic/situational), the agency of violence (who has the ability and capacity to use violence) and attribution of meaning to violence (for example, explanations and legitimisation). The author concludes that types of female offenders show strong external heterogeneity. A finding which is important for appropriate treatment settings. Female perpetrators often lack the words to describe violent behaviour and repeatedly have unprocessed trauma. Accordingly, to understand and prevent IPV, it is necessary to widen perspectives on female offenders without reducing them to traditional gender stereotypes.

The anger/sadistic model is one of several typologies proposed for sexual homicide events. This paper aims to empirically test this model by examining sexual homicide cases. Empirically validating these typologies provides greater validity and reliability toward the sexual homicide classification systems that are useful in police investigations.

Secondary data analysis was conducted using police data on 249 solved sexual homicide cases in Canada from 1948 to 2010. Through a robust classifying method, latent class analysis was used to examine variables from the anger/sadistic typology. Additionally, variables from the pre-crime, crime and post-crime phases were examined in relation to the classes’ external validity.

Three classes emerged, namely, expressive, methodical and instrumental. Expressive and methodical were similar to the anger/sadistic model in terms of the presence of premeditation, victim-offender relationship and body disposal location. Instrumental was characterized by the absence of mutilation on the victim’s body, targeted acquaintances and the use of physical restraints. The three-class typology resembled evidence found in a previous systematic review and also reinforced the notion of heterogeneity in sexual homicide offenses.

This is the first study to empirically test the anger/sadistic typology. Such validation is important given that sexual homicide classification systems can aid in police investigations (e.g. narrowing down the list of potential suspects). Replication of studies is needed to lend credibility to research processes, which, in turn, allows practitioners and policymakers to integrate the results into policies effectively.

The purpose of this study is to investigate whether sexual homicide offenders (SHO) who dispose of the victim’s body naked present with particular crime scene characteristics.

This study aims to answer this question through the use of a sequential logistic regression to test the individual effects of each set of crime scene variables against the manner of disposal using a sample of 662 solved cases of extrafamilial sexual homicide from an international database.

Results demonstrated that the modus operandi behaviors of sexual penetration, asphyxiation, dismemberment and overkill were significantly associated with the body being disposed of naked. In addition, removing or destroying evidence from the scene was also significantly associated with a naked victim. In contrast, the body was more likely to be dumped clothed if the contact scene was deserted and the victim was a stranger. These results suggest that SHOs who dispose of the body naked are more in line with the sadistic sexual murderer, while clothed victims are often disposed of by angry offenders.

To the best of the authors’ knowledge, this is the first study to examine the particular manner of disposing the victim’s body naked in cases of sexual homicide.

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.

Although offender profiling has been cited as an effective tool to interview suspects, empirical profiling methods have completely excluded interviewing suggestions when testing the validity of this technique. The purpose of this paper is to explore the utility of empirically derived profiles of offender- and victim-related sexual assault case characteristics (n=624) in the preparation of the interrogation strategies in sexual assault investigations.

Latent class analysis was used to extract profiles of offender- and victim-related sexual assault case characteristics in a sample of 624 incarcerated sex offenders. Moreover, relationships between offender and victim profiles were conducted using χ² analyses.

Findings show that specific offender-victim profiles are related to greater likelihood of confession during the interrogation. Possible interrogation strategies for each profile are suggested and implications for the practice of interviewing suspects are discussed.

The study is the first to examine both victim and offender profiles in order to assess the significant victim-offender profile combinations and their associated probabilities of resulting in confession.

Sex offender registration and notification act (SORNA) offenders are a source of scholarly study across the social, behavioral, forensic and legal sciences with the bulk of literature focusing on the legal standing and deterrent value of sexual offender registries. Less research focuses on the offending careers of current SORNA offenders relative to other types of sexual offenders whose current offense is not SORNA. The purpose of the current study is to examine this issue empirically.

Using cross-sectional data from a census of male federal offenders who ever perpetrated a sexual offense from the central USA between 2016 and 2020, the current study used t-tests, logistic regression and negative binomial regression to compare current SORNA offenders to other federal correctional clients in terms of their lifetime offending history, sexual violence and compliance on federal supervision.

Current SORNA offenders are significantly more severe and versatile in their sexual offending, have more extensive criminal careers and criminal justice system involvement, and exhibit significantly increased odds of revocation on supervised release despite controls for age, race and ethnicity. However, sensitivity models that specified the federal Post-Conviction Risk Assessment reduced the effects of SORNA status to non-significance in all models.

SORNA offenders are potentially a significant offender group with evidence of both and given their versatile and specialized lifetime offending and noncompliance on federal supervision. However, current SORNA status is rendered spurious once a risk assessment is controlled suggesting more research is needed to evaluate whether sex offender registries posit greater crime control benefit.

This study aims to evaluate differences between substance dependent men who were arrested for intimate partner violence (IPV) with and without concurrent psychiatric problems.

In total, 63 participants were randomly assigned to manual‐guided group behavioral therapies (cognitive behavioral therapy for substance dependent domestic violence offenders (SADV) or drug counseling (DC)) and assessed across 12 weeks of treatment.

Despite excluding psychotic disorders and bipolar disorders at baseline, 23 percent of clients reported prior mental health treatment. SADV participants with co‐occurring mental health were different than SADV participants without co‐occurring mental health symptoms on both baseline and post‐treatment time periods. SADV participants with co‐occurring mental health symptoms had more pre‐treatment impairments, more drug use during treatment, a trend for more problems with aggressive behaviors throughout treatment and significantly more impairments in anger control subscales at post treatment compared to SADV participants without co‐occurring mental health symptoms.

The findings suggest the need to target and treat co‐occurring psychiatric symptoms and distress among SADV offenders. Perhaps offering clients targeted behavioral or pharmacotherapy adjunctive treatments can help improve treatment outcomes among substance dependent offenders of IPV when mental health problems are present.

This study is one of the first to evaluate differences between substance dependent men arrested for IPV with and without concurrent psychiatric problems. It shows that men who are violent toward their partners tend to have a co‐occurring problem with addiction, yet little is known about differences between substance dependent male offenders who have dual mental health problems.