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The Chicago Public School's Safe Passage program is a large-scale intervention designed to improve the safety of students as they travel to and from schools. By placing hundreds of adult monitors on designated streets around schools, the program has the potential to reduce crime. This study evaluates Safe Passage's impact on crime around primary schools during the 2013-2014 expansion of the program. Using longitudinal, geocoded crime data and a difference-in-differences and triple-difference methodology, this study finds suggestive, though not conclusive, evidence that Safe Passage may have contributed to lower crime on designated routes despite some increases in crime around designated "welcoming schools" during the 2013-2014 school year. Implications for the continued expansion of the program and further directions for research of the program are discussed. [ABSTRACT FROM AUTHOR]

In this paper, we consider the problem of testing for parameter change in zero-inflated generalized Poisson (ZIGP) autoregressive models. We verify that the ZIGP process is stationary and ergodic and that the conditional maximum likelihood estimator (CMLE) is strongly consistent and asymptotically normal. Based on these results, we construct CMLE- and residual-based cumulative sum tests and show that their limiting null distributions are a function of independent Brownian bridges. The simulation results are provided for illustration. A real data analysis is performed on some crime data of Australia. [ABSTRACT FROM AUTHOR]

Highlights: [•] We propose an agent-based model to simulate crime in public places. [•] The proposed model has been applied to Santiago (Chile) and Vancouver (Canada) and provided reliable results. [•] The proposed model can be used to test patrolling strategies as well as predictive crime models. [ABSTRACT FROM AUTHOR]

Every year, the South African Minister of Police releases the crime statistics in September and the SAPS Annual Report shortly thereafter. In this article we draw on an earlier analysis by David Bruce (SACQ 31) that questioned the veracity of the SAPS statistics for inter-personal violence. We show that there remains reason to question the veracity of the assault statistics, and point to other weaknesses in the way in which the statistics are reported. We argue that greater value would be obtained from the crime statistics if reported more frequently than once a year, and if they were disaggregated to a greater degree. The SAPS has a sophisticated and up-to-date system for recording and analysing crime data. This could prove an invaluable source of information for those who seek to better understand and respond to crime in South Africa. However, a long-overdue policy change is needed to ensure that South Africa can make better use of its crime statistics. [ABSTRACT FROM AUTHOR]