University of California, Department of Medicine, 9500 Gilman Dr La Jolla, San Diego, CA, 92093-0507, United States.
RTI International, 2150 Shattuck Avenue Suite 800, Berkeley, CA, 94704, United States.
Drug Alcohol Depend. 2021 Mar 1;220:108521. doi: 10.1016/j.drugalcdep.2021.108521. Epub 2021 Jan 11.
Health and social impacts of safe consumption sites (SCS) are well described in multiple countries. One argument used by those opposed to SCS in the US is that findings from other countries are not relevant to the US context. We examined whether an unsanctioned SCS operating in the US affected local crime rates.
Controlled interrupted time series (ITS) analysis of police incident reports for five years before and five years after SCS opening, comparing one intervention and two control areas in one city.
Narcotic/drug incidents declined across the pre- and post-intervention periods in the intervention area and remained constant in both control areas, preventing an ITS analysis but suggesting no negative impact. On average, incident reports relating to assault, burglary, larceny theft, and robbery in the post-intervention period steadily decreased at a similar rate within both the Intervention area and Control area 1. However the change in rate of decline post-intervention was statistically significantly greater in the Intervention area compared to Control area 1 (difference in slope -0.007 SDs, 95 % CI: -0.013, -0.002; p = 0.01). The Intervention area had a statistically significant decline in crime over the post-intervention period compared to Control area 2 (difference in slope -0.023 SDs, 95 % CI: -0.03, -0.01; p < 0.001).
Documented criminal activity decreased rather than increased in the area around an unsanctioned SCS located in the US in the five years following SCS opening.
安全消费场所（SCS）对健康和社会的影响在多个国家都有详细描述。在美国，反对 SCS 的人提出的一个论点是，其他国家的发现与美国的情况无关。我们研究了美国一个未经批准的 SCS 是否影响了当地的犯罪率。
对 SCS 开放前后五年的警察事件报告进行未经批准的 SCS 运营的控制中断时间序列（ITS）分析，比较一个干预区和一个城市的两个对照区。
干预区在干预前和干预后期间，麻醉/药物事件都有所减少，而两个对照区则保持不变，这阻止了 ITS 分析，但表明没有负面影响。平均而言，干预后期间与袭击、盗窃、盗窃和抢劫有关的事件报告在干预区和对照区 1 内以相似的速度稳步下降。然而，干预后期间下降率的变化在干预区与对照区 1 之间具有统计学意义（斜率差异 -0.007 SD，95 % CI：-0.013，-0.002；p = 0.01）。与对照区 2 相比，干预区在干预后期间的犯罪率呈统计学显著下降（斜率差异 -0.023 SD，95 % CI：-0.03，-0.01；p < 0.001）。
在 SCS 开放后的五年内，美国一个未经批准的 SCS 所在地区的记录犯罪活动减少了，而不是增加了。
