April M. Zeoli

Effects of domestic violence policies, alcohol taxes and police staffing levels on intimate partner homicide in large US cities.

Objective To assess the relationships between intimate partner homicide (IPH) and public policies including police staffing levels in large US cities. Design The research uses a multiple time-series design to examine the effects of statutes aimed at restricting access to firearms for perpetrators of domestic violence, allowing or mandating arrest for violators of domestic violence restraining orders (DVROs), beer excise taxes, and police staffing levels on IPH in 46 of the largest US cities from 1979 to 2003. Both total IPH and IPH committed with a firearm are analysed. Generalised estimating equations using a Poisson distribution are used to regress IPH on the policies and potential confounders. Results State statutes restricting those under DVROs from accessing firearms, and laws allowing the warrantless arrest of DVRO violators are associated with reductions in total and firearm IPH. Police staffing levels are also negatively associated with IPH and firearm IPH. There was no evidence that other policies to restrict firearm access to domestic violence offenders or alcohol taxes had a significant impact on IPH. Conclusions Reducing access to firearms for DVRO defendants, increasing police staffing levels and allowing the warrantless arrest of DVRO violators may reduce the city-level risk of IPH. Future research should evaluate factors that may mediate the effect of these laws and increased police staffing levels on IPH to determine whether there are opportunities to increase their protective effect. Further research is needed on firearm law implementation to determine why the other tested laws were not found effective.

Homicide as Infectious Disease: Using Public Health Methods to Investigate the Diffusion of Homicide

This study examined the spatial and temporal movement of homicide in Newark, New Jersey from January 1982 through September 2008. We hypothesized that homicide would diffuse in a similar process to an infectious disease with firearms and gangs operating as the infectious agents. A total of 2,366 homicide incidents were analyzed using SaTScan v.9.0, a cluster detection software. The results revealed spatio-temporal patterns of expansion diffusion: overall, firearm and gang homicide clusters in Newark evolved from a common area in the center of the city and spread southward and westward over the course of two decades. This pattern of movement has implications in regards to the susceptibility of populations to homicide, particularly because northern and eastern Newark remained largely immune to homicide clusters. The theoretical and practical implications of the findings, as well as recommendations for future research, are discussed.

Effects of undercover police stings of gun dealers on the supply of new guns to criminals

Objective: To assess the effects of undercover police stings and lawsuits against gun dealers suspected of facilitating illegal gun sales in three US cities (Chicago, Detroit, Gary) on the flow of new firearms to criminals. Methods: An interrupted time series design and negative binomial regression analyses were used to test for temporal change in the recovery of guns used in crimes within one year of retail sale in both intervention and comparison cities. Results: The stings were associated with an abrupt 46.4% reduction in the flow of new guns to criminals in Chicago (95% confidence interval, −58.6% to −30.5%), and with a gradual reduction in new crime guns recovered in Detroit. There was no significant change associated with the stings in Gary, and no change in comparison cities that was coincident with the stings in Chicago and Detroit. Conclusions: The announcement of police stings and lawsuits against suspect gun dealers appeared to have reduced the supply of new guns to criminals in Chicago significantly, and may have contributed to beneficial effects in Detroit. Given the important role that gun stores play in supplying guns to criminals in the US, further efforts of this type are warranted and should be evaluated.

An Assessment of the Quality of Homicide Data in the Supplementary Homicide Reports: A Research Note

The Federal Bureau of Investigation (FBI)’s Supplementary Homicide Reports (SHR) is a national-level incident-based data clearinghouse for homicide events in the USA used in countless research studies to track homicide trends, test theory, and analyze policy. Despite its wide use, the SHR has well-known limitations. This research note examines the accuracy of the information in the SHR by comparing homicide cases in Newark, New Jersey with their respective data to determine the level of disagreement between the data sources, which variables exhibit the greatest disagreement, and the case-related variables related to the disagreement. Uniquely, we do this for cases where offenders are known in the SHR. Our findings suggest that variables such as victim-offender relationship and circumstance have high disagreement even when the SHR reports an offender, and that the most important covariate of this is time to close the homicide investigation with an arrest. Research implications of the results are discussed.

Abused Mothers' Safety Concerns and Court Mediators' Custody Recommendations

This study adds to research on family court’s response to custody in the context of intimate partner abuse (IPA). Mediation is often used to assist family court with custody negotiation; however, debate exists in the field regarding its use when IPA exists. The following study examines experiences with court mediation among a sample of victimized mothers who divorced abusive husbands. Mixed-method data were collected from 19 women. Findings demonstrate that abuse is rarely considered in custody recommendations, as most court mediators prefer joint custody. Implications for the ongoing debate, as well as future directions for research, are discussed.

Secondary Victimization of Abused Mothers by Family Court Mediators.

Family court often assists divorcing parties in establishing custody arrangements. Mediation is commonly used for custody negotiation; however, its applicability for cases involving intimate partner abuse (IPA) is debated. This study was designed to gain an in-depth understanding of abused mothers’ court mediation experiences and how those experiences impact future court help-seeking when the fathers of their children have been abusive to them. Most women experienced secondary victimization during mediation, which had a negative impact on their willingness to use the court in the future. Policy recommendations include screening for IPA, providing separate mediation sessions, and improving court mediators’ training.

A Summary and Analysis of Warrantless Arrest Statutes for Domestic Violence in the United States

In the United States, all 50 states and the District of Columbia have enacted statutes that allow police officers to make warrantless arrests for domestic violence given probable cause; however, state laws differ from one another in multiple, important ways. Research on domestic violence warrantless arrest laws rarely describe them as anything more than discretionary, preferred, or mandatory, either within their analyses or within the texts of their publications; researchers, and their audiences, may not be aware of the vast and potentially important differences among these laws. In this article, we list the domestic violence warrantless arrest laws for each state, and discuss them in terms of five common elements: the phrasing of the arrest authority; whether additional factors to domestic violence are required to trigger the arrest authority; qualifications to the arrest authority; time limits for warrantless arrest to occur; and whether police officers are required to report why they made a dual or no arrest. We then analyze the common elements of the laws, paying particular attention to how they may encourage or discourage the arrest of alleged domestic violence perpetrators. It is critical that researchers, advocates, and policymakers are aware of these variations in state statutes when conducting or interpreting research or making policy recommendations.

Mandatory, Preferred, or Discretionary: How the Classification of Domestic Violence Warrantless Arrest Laws Impacts Their Estimated Effects on Intimate Partner Homicide

Warrantless arrest laws for domestic violence (DV) are generally classified as discretionary, preferred, or mandatory, based on the level of power accorded to police in deciding whether to arrest. However, there is a lack of consensus in the literature regarding how each state’s law should be categorized. Using three classification schemes, this study examined whether variations among these schemes impact research outcomes by analyzing the effects of discretionary, preferred, and mandatory warrantless arrest laws on intimate partner homicide (IPH). Variations in classification schemes and in the dates of law passage presented in the literature resulted in differing estimated effects of the laws.

Adolescents' experiences of dating and intimate partner violence: "Once is not enough"

Pregnant and parenting adolescents represent a significant proportion of the individuals directly affected by intimate partner violence. Although screening tools are useful, it is important to ask very specific questions to open lines of communication with adolescents. This article presents a clinical case that highlights the challenges of screening adolescents for intimate partner violence and offers suggestions for health care providers. Specific examples of screening questions are offered.

Modeling the Movement of Homicide by Type to Inform Public Health Prevention Efforts

OBJECTIVES We modeled the spatiotemporal movement of hotspot clusters of homicide by motive in Newark, New Jersey, to investigate whether different homicide types have different patterns of clustering and movement. METHODS We obtained homicide data from the Newark Police Department Homicide Units investigative files from 1997 through 2007 (n = 560). We geocoded the address at which each homicide victim was found and recorded the date of and the motive for the homicide. We used cluster detection software to model the spatiotemporal movement of statistically significant homicide clusters by motive, using census tract and month of occurrence as the spatial and temporal units of analysis. RESULTS Gang-motivated homicides showed evidence of clustering and diffusion through Newark. Additionally, gang-motivated homicide clusters overlapped to a degree with revenge and drug-motivated homicide clusters. Escalating dispute and nonintimate familial homicides clustered; however, there was no evidence of diffusion. Intimate partner and robbery homicides did not cluster. CONCLUSIONS By tracking how homicide types diffuse through communities and determining which places have ongoing or emerging homicide problems by type, we can better inform the deployment of prevention and intervention efforts.