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One crime wave, three hypotheses: using interrupted time series to examine the unintended consequences of criminal justice reform, computer tablet recording of crime and a long-term hot spots policing programme

Chainey, SP; Estévez-Soto, PR; (2024) One crime wave, three hypotheses: using interrupted time series to examine the unintended consequences of criminal justice reform, computer tablet recording of crime and a long-term hot spots policing programme. Crime Prevention and Community Safety 10.1057/s41300-024-00205-8. (In press). Green open access

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Abstract

After sustained reductions in robberies and thefts in 2016, the city of Montevideo, Uruguay, experienced a sudden increase in these crimes in late 2017. Using interrupted time series regressions, and controlling for seasonality using ARIMA models, we investigated three potential explanations for this increase: (1) the failure of a hot spots policing program to maintain crime decreases; (2) improved crime recording by police patrols using tablet computers; and (3) the change from an inquisitorial to an adversarial criminal justice procedure. We found that the hot spots policing program that began in April 2016 continued to be associated with crime reductions during 2017, that the increases observed after November 2017 were strongly associated with the new criminal justice procedure, and that tablets had a positive, albeit negligible, effect. The findings illustrate that criminal justice reforms, desirable as such reforms may be, can have unintended consequences on crime levels.

Type: Article
Title: One crime wave, three hypotheses: using interrupted time series to examine the unintended consequences of criminal justice reform, computer tablet recording of crime and a long-term hot spots policing programme
Open access status: An open access version is available from UCL Discovery
DOI: 10.1057/s41300-024-00205-8
Publisher version: http://dx.doi.org/10.1057/s41300-024-00205-8
Language: English
Additional information: Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permis‑ sion directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/ licenses/by/4.0/.
Keywords: Hot spots policing, Adversarial system, Tablet computers, Latin America, Preventive detention
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Security and Crime Science
URI: https://discovery.ucl.ac.uk/id/eprint/10192411
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