By M. Dylan Spencer, Cory Schnell, Samuel E. DeWitt

Objectives: Public transportation systems experience dynamic changes over time to accommodate growing cities, yet evaluations of their impact on crime often focus on shorter, static periods. This study examines the long-term relationship between light rail expansion and crime, using a 20-year observation period in Charlotte, NC. We analyze changes in crime patterns near original, expanded, and planned light rail station locations. Methods: We conducted a quasi-experimental program evaluation of the opening of light rail stations on crime at place. We estimated Poisson regression models with fixed effects and difference in difference models to analyze crime incidents at street intersections surrounding light rail stations across varying spatial distances. Results: Our findings suggest that the expansion of the light rail system led to an increase in crime around train stations. We observe a significant intervention effect across multiple crime categories and spatial distances. These analyses suggest the effect appears stronger after the expansion of light rail service to additional train stations. Conclusions: These results have implications for a wide range of community stakeholders involved with the planning of public transportation. Given the evolving demand for transit systems, our findings highlight the need for crime prevention policies to accompany infrastructure expansion and mitigate crime.

J Exp Criminol (2025), 39p.

By Daniel Birks, Elizabeth R. Groff, and Nick Malleson

An agent-based model is a form of complex systems model that is capable of simulating how the micro-level behavior of individual system entities contributes to macro-level system outcomes. Researchers draw on theory and evidence to identify the key elements of a given system and specify behaviors of agents that simulate the individual entities of that system—be they cells, animals, or people. The model is then used to run simulations in which agents interact with one another and the resulting outcomes are observed. These models enable researchers to explore proposed causal explanations of real-world outcomes, experiment with the impacts that potential interventions might have on system behavior, or generate counterfactual scenarios against which real-world events can be compared. In this review, we discuss the application of agent-based modeling within the field of criminology as well as key challenges and future directions for research.

Annual Review of Criminology, Vol. 8:75-95 January 2025)

By Robin Joy

Routine Activity Theory, a criminological theory that describes the circumstances in which crime occurs, can be applied to crimes against vulnerable adults and the elderly. Using a variety of data sources this report examines this theory and finds: 1. Vulnerable Adults are more likely to be victimized by someone they know. 2. People charged with violating the Vulnerable Adult statutes have criminal histories that indicate a specialization in criminal activity, compared to those of the general offending population. 3. People charged with violating the Vulnerable Adult statutes are significantly older than the general offending population. 4. Most crimes against the vulnerable and the elderly take place in a private home. 5. The elderly are more likely to be victims of larceny, while the vulnerable adults are more likely to be victims of fraud. Routine Activity Theory can explain the victimization against the vulnerable and elderly. Using this framework, policy makers and stakeholders can begin to create policies and programs that can help keep vulnerable and elderly Vermonters safe.   

Montpelier, VT: Crime Research Group, 2022. 17p.

By Shannon J. Linning , Kate Bowers and John E. Eck

Considerable research shows that crime is concentrated at a few proprietary places: addresses and facilities. Emerging research suggests that proprietary places may radiate crime: activities at a place increase the risk of crime in the area around it. Weaknesses in the research create uncertainty about radiation, so we need more rigorous research. To conduct this research, we need a theory of crime radiation that operates at two spatial levels: the proprietary place and the area. This paper describes such a theory. Our theory states that crime radiation stems from the interaction between place management decisions at the place and offenders searching for opportunities in the area. Place managers create crime opportunities inside and outside their places. Offenders exploit place managers’ creations by deliberately searching for opportunities or by chancing upon the opportunities. The ways place managers and offenders interact gives rise to three types of crime radiation: hot dot, veiled dot, and cold dot. Finally, we propose questions crime scientists should answer to better understand crime radiation.

Crime Science (2024) 13:32