Registration and the Closure of Stranger-Perpetrated Sex Crimes Reported to Police.

A key goal of sex offender registration is to assist law enforcement in sexual assault investigations; to identify potential suspects when the perpetrator's identity is unknown. To date, however, no research has assessed the utility of sex offender registries in closing cases of sexual assault when the incident involved stranger perpetrators. Addressing this gap, the study drew on the National Incident-Based Reporting System (1992-2001) to test the effect of registry implementation on closure of stranger-involved sex crimes across six states. Comparing closure speeds from before and after registration began in each state, multivariate survival models showed incidents of stranger-perpetrated sexual assault were cleared 23% to 28% faster post-registration implementation. Incidents with juvenile victims and incidents with additional crimes beyond the sexual assault also closed significantly faster (regardless of whether a registry existed).

Injury Matters: On Female-Perpetrated Sex Crimes.

Despite the importance of studying sexual assaults perpetrated by women, the field knows very little about female sexual offenders' (FSOs) use of violence or physical injury resulting from these assaults. This study draws more than 20 years of National Incident-Based Reporting System (NIBRS) data reported to police (1992-2014) to identify factors that distinguish between female perpetrated incidents of sexual assault that result in severe, minor, or no physical victim injuries above and beyond the sexual assault itself. Using a multinomial logistic regression model (MNLM), 15,928 incidents of FSO-perpetrated sexual assault were analyzed from the NIBRS. The results showed that the extent of victim injuries sustained during the sexual assault incidents was associated with a number of factors, including the presence of a female victim, the age of victim, a greater number of offenders, and the presence of weapons. In particular, incidents that resulted in major victim injuries were significantly associated with alcohol and drug use by the perpetrator. In general, incidents with young children were at increased risk of a sexual assault resulting in a major or minor victim injury. Although further investigation is needed to continue to better understand female sexual offending behaviors, these findings suggest that certain incident characteristics increase the likelihood of the assault to involve the use of violence by an FSO against her victims.

Deconstructing Incidents of Campus Sexual Assault: Comparing Male and Female Victimizations.

Research on campus sexual assault (CSA) has almost exclusively drawn on self-report data, examined undergraduates (i.e., students aged 18-24), and focused on female victimization. The few studies which included male CSA victims generally had fewer than 100 male subjects, which makes important statistical analyses difficult. To build upon prior literature and expand knowledge on male CSA victimization, we analyzed more than 5,000 incidents of CSA that were reported to police from across the United States using National Incident-Based Reporting System data (NIBRS; 1993-2014). We expanded victim age ranges to include those 17 to 32 years old and investigated more male CSA victimizations than prior work to date, approximately 350 incidents. Comparisons of male victim versus female victim CSA incidents, estimated via multivariate logistic regression, revealed several important patterns. Although both male and female victims were approximately 19 years old on average, perpetrators who assaulted females tended to be 23 years old while those assaulting males were on average 29. While 1% of CSA perpetrators offending against female victims were themselves female, 17% of perpetrators offending against male victims were female. Finally, CSA incidents with male victims were more likely to include multiple offenders, but less likely to involve stranger or Black perpetrators and also less likely to result in injuries relative to CSA incidents with female victims. Implications are discussed in terms of policing practices, and we pose new questions to the field regarding the study and prevention of CSA.

Parks, Playgrounds, and Incidents of Sexual Assault.

In the United States, certain laws restrict those convicted of sexually offending from accessing social spaces where youth congregate such as parks and playgrounds. However, empirical work to date has rarely described sexual assaults in these locations or tested the assumptions of these laws explicitly. To address these gaps in the literature, we drew on the National Incident-Based Reporting System (NIBRS) to analyze offender, victim, and crime characteristics of sexual assaults that occurred at parks and playgrounds over a 5-year period (2010-2015). Estimated via multivariate logistic regression, results showed support for these law's assumptions when analyzing this particular location. However, stranger perpetrators were significantly more likely to sexually assault adult victims versus youth victims. Several other offense features distinguished youth versus adult victim sexual assault incidents at parks and playgrounds, such as the offender age, the use of force, and the injuries sustained by the victim. Collectively, these findings both support and challenge these types of social space restriction laws.

Romeo, Juliet, and Statutory Rape.

Statutory rape is an important yet understudied topic. There is broad public support for the prosecution of older adults who engage in sexual relationships with minors regardless of perceptions of consent by either party. However, some scholars worry that expansive definitions within these laws have led to the widespread involvement of the justice system in the lives of similarly aged teenagers engaging in relatively normal sexual behavior, so called "Romeo and Juliet" liaisons. This, in turn, has called into question the legitimacy of national policies, such as sex offender registration, because of the presumption that registries are likely filled with these kinds of cases which may not represent the intent of legislatures and the public. Despite the importance of these debates, there is little research assessing the prevalence of Romeo and Juliet cases in official crime statistics or that analyze differences in characteristics of statutory rape as a function of victim-offender age differences. Drawing on more than 20 years of police data from over 6,000 police departments in the United States, this study found statutory rape cases were rare and Romeo and Juliet cases were even rarer. Multivariate models showed several distinctions between statutory rape cases as a function of the age differences between victim and offender. Of note, the odds that additional forms of sexual aggression occurred in the incident grew as the age difference expanded.

Deconstructing Incidents of Female Perpetrated Sex Crimes.

Very little is known about co-offending by female sexual offenders (FSOs), especially in terms of diverse forms of offender groupings. To address this gap in the literature, this study uses 21 years (1992-2012) of National Incident-Based Reporting System data to analyze incidents of sexual offending committed by four female groupings: solo FSOs ( n = 29,238), coed pairs consisting of one male and one FSO ( n = 11,112), all-female groups ( n = 2,669), and multiple perpetrator groups that consist of a combination of three or more FSOs and male sexual offenders (MSOs; n = 4,268). Using a multinomial logistic regression model, the data show significant differences in offender, victim, and crime context incident characteristics. The data also indicate that incidents with solo FSOs and all-female groups have similar characteristics, coed pairs and multiple perpetrator incidents have similar characteristics, and these two categorizations are fairly distinct from one another. Implications of this research are discussed in addition to directions for future research on female sexual offending.

An incident-based comparison of female and male sexual offenders.

Identifying the ways in which male and female sex offenders differ is an important but understudied topic. Studies that do exist have been challenged by a reliance on small and select samples. Improving on these limitations, we use the National Incident-Based Reporting System (NIBRS) to compare male and female sex offenders among all 802,150 incidents of sexual assault reported to police across 37 states between 1991 and 2011. Findings indicated some broad similarities between groups, including the most prominent offense location (home), most common victim-offender relationship (acquaintance), and the rarity of injuries or drug abuse during crimes. However, the data also showed several important differences between male and female sexual offenders. Most notably, females offended with male accomplices in more than 30% of their sexual crimes--far more often than occurred among male sexual offenders (2%). Likewise, females offended against a victim of the same sex in nearly half of their crimes, yet this was only true in approximately 10% of male sexual offenses. Implications for future research are discussed.

Enhancing the National Incident-Based Reporting System: A Policy Proposal.

The National Incident-Based Reporting System (NIBRS) is an important data set serving social scientists, policy makers, the business community, and the press. However, it is hampered by low participation rates among the nation's police agencies. This article outlines a strategy for enhancing NIBRS by (a) providing police agencies free and supported software to extract and transmit an agency's Record Management System (RMS) data in NIBRS format (or a data-entry system if an RMS does not exist), (b) including personal identifiers of arrestees, and (c) allowing police agencies to access the national data for routine police work. The article describes how taking these steps would decrease the costs of implementing and maintaining NIBRS, encourage widespread adoption, and increase data quality. These enhancements could foster substantial improvements in policing as well as other aspects of the criminal justice system. These changes would also open up new and exciting areas for academics and analysts, including the ability to study criminal careers over time as well as criminal networks within NIBRS.

Measurement Matters: Comparing Old and New Definitions of Rape in Federal Statistical Reporting.

National statistics on the incidence of rape play an important role in the work of policymakers and academics. The Uniform Crime Reports (UCR) have provided some of the most widely used and influential statistics on the incidence of rape across the United States over the past 80 years. The definition of rape used by UCR changed in 2012 to include substantially more types of sexual assault. This article draws on 20 years of data from the National Incident-Based Reporting System to describe the impact this definitional change will have on estimates of the incidence of rape and trends over time. Drawing on time series as well as panel random effects methodologies, we show that 40% of sexual assaults have been excluded by the prior definition and that the magnitude of this error has grown over time. However, the overall trend in rape over time (year-to-year change) was not substantially different when comparing events meeting the prior definition and the subgroups of sexual assault that will now be counted.

Endogeneity in prison risk classification.

Security designation tools are a key feature of all prisons in the United States, intended as objective measures of risk that funnel inmates into security levels-to prison environments varying in degree of intrusiveness, restriction, dangerousness, and cost. These tools are mostly (if not all) validated by measuring inmates on a set of characteristics, using scores from summations of that information to assign inmates to prisons of varying security level, and then observing whether inmates assumed more risky did in fact offend more. That approach leaves open the possibility of endogeneity--that the harsher prisons are themselves bringing about higher misconduct and thus biasing coefficients assessing individual risk. The current study assesses this potential bias by following an entry cohort of inmates to more than 100 facilities in the Federal Bureau of Prisons (BOP) and exploiting the substantial variation in classification scores within a given prison that derive from systematic overrides of security-level designations for reasons not associated with risk of misconduct. By estimating pooled models of misconduct along with prison-fixed effects specifications, the data show that a portion of the predictive accuracy thought associated with the risk-designation tool used in BOP was a function of facility-level contamination (endogeneity).

The impact of prison conditions on staff well-being.

Prison conditions have been at the center of long-standing debates among corrections scholars. Interestingly, this debate has focused on inmates alone while paying little attention to the potential impact of prison conditions on staff. Addressing this limitation, the study draws on survey data collected from a stratified random sample of prison staff working at all federal prisons in 2007 to examine the impact of prison conditions on staff well-being (substance use, psychological symptomatology, physical duress, and sick leave use). Mixed-level models show that harsh physical conditions correspond to significant problems for staff on all outcomes measured (individual-level impacts). The data also show that prison-level aggregations of harsher conditions correspond to significant deterioration in staff physical and psychological symptomatology above and beyond individual-level effects.

Is tougher better? The impact of physical prison conditions on inmate violence.

Physical conditions of prisons have been at the center of long-standing debates in correctional policy and research. Many argue prisons should be unpleasant to deter future offending and motivate prosocial change among inmates. Others believe harsh conditions inhibit effective treatment and, perhaps, make offenders worse. Little progress in these debates has emerged, primarily because few studies exist that have tested propositions coming from either camp. This study draws on survey data collected from a random sample of staff at each of the 114 federal prisons operating in 2007. Staff perceptions of noise, clutter, dilapidation, and privacy were combined to reflect physical conditions of each prison (aggregated to the prison level). Operational data measuring serious violence was used to create a count of serious assaults at each prison over the same time period referenced in the staff survey. Utilizing a Poisson framework, the data showed that poor physical conditions of prisons correspond to significantly higher rates of serious violence. Implications for theory and policy are discussed.

Social bonds and change during incarceration: testing a missing link in the reentry research.

Research examining prisoner reentry has demonstrated negative impacts of incarceration on social bonds. However, this research is limited in two ways. First, it generally examines outcomes after release, paying less attention to processes occurring in prison. Second, this work tends to examine "incarceration" as a whole, regarding prisons as homogenous. This study uses data from an experiment in which offenders were randomly assigned to incarceration at one of two prisons polarized across a number of structural characteristics that research suggests affect social bonds (a traditional prison vs. a correctional boot camp). Groups were compared with respect to commitment, belief, attachment, and in terms of changes among their relationships during incarceration. The data showed that the boot camp improved prosocial beliefs, but few differences emerged in terms of commitment and attachment. Similarly, the data showed few differences in attachment regardless of the prosocial or antisocial orientation of the inmate's friends or family.