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Factors influencing the spatial distribution of police stops and their efficacy in crime prevention and control

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  • Zhuoying Fan

    (Guangzhou University)

  • Xuewei Zhang

    (Guangzhou University)

  • Guangwen Song

    (Guangzhou University)

  • Chunxia Zhang

    (Guangzhou Polytechnic University)

Abstract

Targeted police stops are frequently carried out by police in response to real-world needs. The effectiveness of various purpose-driven police stop tactics on crime prevention and control varies. However, existing research has neither identified the associated factors of police stops nor explored their impact on crime with different factors. Therefore, this study focuses on the main urban areas of megacities along the southeast coast of China. The space is partitioned using hierarchical clustering after applying the XGBoost and SHAP algorithms to determine the factors related to police stops. Lastly, this study explores the causal effects of police stops with different associated factors on crime, using causal forests within double machine learning. There are three conclusions. First, there is a strong correlation between police stops and four variables: alarm, visiting population, criminal, and government agencies. Second, by clustering based on different associated factors of police stops, existing police stops can be classified into five categories according to their purposes: (i) composite stops positively associated with “Alarm, Visiting Population, Criminals” (AVC-CPS); (ii) composite stops positively associated with “Alarm, Visiting Population, Bus Station” (AVB-CPS); (iii) random stops with no significant positive association (NA-RPS); (iv) single police stops positively associated with “Alarm” (A-SPS); and (v) single stops positively associated with “Visiting Population” (V-SPS). AVC-CPS corresponds to the highest number of grids in the study area. Third, the influence of police stops on crime varies significantly depending on the factors that are associated with them. Among all categories, AVC-CPS has the best overall inhibitory effect on crime, while single police stops and random police stops have minimal or insignificant effects. In summary, the conclusions of this study can provide a basis for optimizing the spatial deployment of police forces, aiming to improve the effectiveness of stop operations and crime prevention and control capabilities.

Suggested Citation

  • Zhuoying Fan & Xuewei Zhang & Guangwen Song & Chunxia Zhang, 2025. "Factors influencing the spatial distribution of police stops and their efficacy in crime prevention and control," Humanities and Social Sciences Communications, Palgrave Macmillan, vol. 12(1), pages 1-9, December.
    • Handle: RePEc:pal:palcom:v:12:y:2025:i:1:d:10.1057_s41599-025-05355-0
    DOI: 10.1057/s41599-025-05355-0
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    References listed on IDEAS

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