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The purpose of this paper is to use an evaluation of a micro-place-based hot-spot policing implementation to highlight the potential issues raised by data quality standards in the recording and measurement of crime data and police officer movements.

The study focusses on an area of London (UK) which used a predictive algorithm to designate micro-place patrol zones for each police shift over a two-month period. Police officer movements are measured using GPS data from officer-worn radios. Descriptive statistics regarding the crime data commonly used to evaluate this type of implementation are presented, and simple analyses are presented to examine the effects of officer patrol duration (dosage) on crime in micro-place hot-spots.

The results suggest that patrols of 10-20 minutes in a given police shift have a significant impact on reducing crime; however, patrols of less than about 10 minutes and more than about 20 minutes are ineffective at deterring crime.

Due to the sparseness of officer GPS data, their paths have to be interpolated which could introduce error to the estimated patrol dosages. Similarly, errors and uncertainty in recorded crime data could have substantial impact on the designation of micro-place interventions and evaluations of their effectiveness.

This study is one of the first to use officer GPS data to estimate patrol dosage and places particular emphasis on the issue of data quality when evaluating micro-place interventions.

This study aims to analyse the effect of gun-related violence on housing values, controlling for the area's crime levels and locational factors. Previous studies that aimed to find a causal connection between crime and housing values used instrument variables to solve the endogeneity problem. Here, the authors have instead been able to take advantage of the fact that shootings have occurred in random time and space. This has made it possible to estimate models to create windows around the shooting (event) and to estimate the causal effects of the shootings. Thus, the authors aim to contribute to the regression discontinuity design method in this context to estimate the short-term effects.

Using the regression discontinuity design method, the authors can estimate the short-term effects of shootings.

Findings from the analysis indicate that shootings directly affect those who are impacted by shootings and indirectly affect the environments where shootings occur. The indirect effect of shootings is momentary as it is capitalised directly in housing values in the immediate area. The effect also appears to be relatively long-term and persistent as housing values have not returned to the price level before the shooting 100–200 days after the shooting. The capitalisation effect is higher the closer one gets to the central parts of the city. On the other hand, the capitalisation effect is not higher or lower in areas with a higher crime rate per capita.

The article contributes to the previous literature in several ways. First and foremost, it provides an explicit analysis of shootings in built-up areas and their hypothesised effect on property prices through the impact on attractiveness and perceived safety. As far as the authors know, no study has analysed this issue on the international level or in Sweden. In this way, the authors aim to develop a study that can provide critical knowledge about one of the adverse effects of shootings. The authors also contribute to the literature by utilising unique data material, which allows the authors to merge information from the police about the exact location of shootings in the Stockholm area with data on sales of apartments in the same residential areas. In addition to the exact location of the shootings (coordinates), the authors also have access to data about whether the shootings led to injuries or deaths. Thus, the authors have separated the effect of shootings and fatal shootings, which has not been done before. Finally, the authors set out to highlight the results as a contribution to the debate on shootings.

A large increase in robberies of convenience stores in New Zealand (NZ) in 2016 and 2017 was anecdotally attributed to persistent and substantial increases in excise tax on tobacco products. This study aims to explore the validity of that claim by examining the characteristics of the robberies through the lens of online news coverage.

Google, Bing and main online NZ news outlets were searched for news reports between 2009 and 2018 of tobacco-related store robberies. Content analysis was used to extract characteristics such as date of robbery, type of store, items targeted or stolen and demographic profile of offenders. The prevalence of reported robberies by socioeconomic level of the surrounding community was assessed using nearest primary school decile rating. Descriptive statistics and statistical analysis were used to discuss trends and key findings in the data.

Reports on 572 robberies were unevenly distributed across the years with a large increase in 2016 and 2017, followed by a substantial decrease in 2018. Local community convenience stores were primarily hit – more so in lower socioeconomic communities. Robberies occurred nationwide and disproportionately so during colder months in lower socioeconomic communities. Many robberies were aggravated resulting in serious injury to shopkeepers. Tobacco and cash were predominantly targeted.

The large increase in robberies that occurred in 2016–2017 likely resulted from tax-driven tobacco price hikes combined with reduced duty-free tobacco coming into NZ with travellers. Installation of security in stores, news fatigue and other explanations are potential reasons for the 2018 decrease in reported robberies despite tobacco prices increasing. Frequent robberies of local stores, many including violence, should be a public health concern as destruction of community well-being can be a determinant of other health problems. The negative consequences for communities, particularly lower socioeconomic communities, need to be factored into the cost benefit analysis of raising the tax on tobacco.

This study provides much needed detail on the negative health and social consequences of tobacco-related store robberies.