Inspired by studies on crime concentration, scholars have begun examining the spatial patterns of other issues under the police mandate, such as calls for service involving persons with perceived mental illness (PwPMI). While findings show that PwPMI calls for service concentrate in a few number of places, we do not know whether the concentration of these calls fall within a narrow bandwidth of spatial units nor whether these calls are spatially stable. Drawing on 7 years of calls for service data from the Barrie Police Service, this study tests for the temporal stability of PwPMI call for service concentrations at two units of spatial analysis and applies a longitudinal variation of the Spatial Point Pattern Test to assess the spatial stability of these calls at both the global and local levels. The results reveal that concentrations of PwPMI calls for service not only fall within a narrow proportional bandwidth of spatial units, but are spatially stable, even during the COVID-19 pandemic.

中文翻译：

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心理健康的空间（不）稳定性需要警察服务

受犯罪集中度研究的启发，学者们开始研究警察任务下其他问题的空间模式，例如涉及精神疾病患者的求助电话 (PwPMI)。虽然调查结果表明 PwPMI 要求服务集中在几个地方，但我们不知道这些呼叫的集中是否落在空间单位的狭窄带宽内，也不知道这些呼叫在空间上是否稳定。借鉴巴里警察局 7 年的服务数据要求，本研究测试了 PwPMI 的时间稳定性，要求服务集中在两个空间分析单元，并应用空间点模式测试的纵向变化来评估空间稳定性全球和地方层面的这些呼吁。