Place Network Investigations in Las Vegas, Nevada: Program Review and Process Evaluation

By Tamara D. Herold, Ph.D. Robin S. Engel, Ph.D. Nicholas Corsaro, Ph.D. Stacey L. Clouse

The gang and gun violence reduction project implemented in Las Vegas consisted of three components: hot spots deployment, focused deterrence, and place network investigations (PNI). This report focuses on a program review and process evaluation of the PNI initiative. The PNI strategy, also known as PIVOT (Place-based Investigations of Violent Offender Territories), is grounded in crime science theory and research, which consistently finds that crime is highly concentrated, and patterns of crime concentration generally persist in the same locations over time despite repeated police intervention (Andresen, & Malleson, 2011; Braga, Andresen, & Lawton, 2017; Weisburd, Bushway, Lum, & Yang, 2004, Wilcox & Eck, 2011). The strategy was designed and first implemented in Cincinnati, Ohio. It is based on the assumption that historical, or persistent, hot spots are the result of deeply entrenched crime place networks used by active offender groups. The PNI strategy requires police investigations to uncover crime place networks, and a local PNI Investigative Board to focus existing city/county resources to alter crime-facilitating place dynamics (Madensen et al., 2017). In early 2018, the LVMPD Command Staff, in consultation with the Director of Crime Analysis, selected a pilot project site within the bureau’s Northeast Area Command (NEAC) for PNI implementation. A specific condominium complex, small strip mall that housed a convenience store, and nearby multi-family unit housing was selected to serve as the primary focus of the intervention. The NEAC Captain assigned her FLEX (Flexible Deployment) team to implement the PNI strategy and serve as the primary investigative unit. The International Association of Chiefs of Police (IACP) / University of Cincinnati (UC) Center for Police Research and Policy arranged to provide technical assistance and training to LVMPD’s PNI investigative unit. An introductory training for investigators and internal/external partners was conducted in April 2018. On-going training and assistance were provided on a bi-weekly basis in the form of on-site meetings or telecommunication with strategy experts and police personnel involved in Cincinnati’s PNI implementation from May 1, 2018, until the end of the evaluation period (April 30, 2019). In order to better understand the process and influence of the pilot PNI program in Las Vegas, officials from LVMPD partnered with researchers from the Center for Police Research and Policy, along with academic partners from the University of Nevada Las Vegas (UNLV) to conduct a program review and process evaluation of the PNI initiative. Using bi-weekly investigative activity summaries and LVMPD reported crime incident data, this study addresses the following specific research questions: 1) What types of activities were conducted by the LVMPD PNI investigative unit in the targeted violent hot spot? Given that PNI is a recently developed strategy, LVMPD and other agencies interested in adopting the PNI strategy could benefit from systematic documentation of investigative and enforcement activities conducted by investigative units 2) What successes and obstacles were experienced by those responsible for implementing the PNI strategy in Las Vegas? For the purpose of this evaluation, 11 specific implementation dimensions (or general steps) were identified based on the process used to conduct previous place network investigations in Cincinnati, Ohio. The current assessment attempts to describe the general degree of program fidelity achieved by the LVMPD during PNI strategy implementation. 3) What was the impact of the LVMPD PNI strategy on gun-related crime in the targeted area? While the analysis presented within this evaluation is mostly exploratory in nature, given the relatively short intervention period and low overall crime numbers, it offers insight into how the PNI strategy, as implemented by the LVMPD, could impact violent crime targeted areas.

Cincinnati: UC Center for Police Research and Policy University of Cincinnati 2020. 35p.