Objectives

A critical unknown in any jurisdiction is the scope of crime that is not brought to the attention of police. This study provides a unique comparison of Chicago crime rates using both police and victimization survey data. Levels of crime reporting and the reasons victims provide for or against reporting crime to the police are examined. Patterns are compared to those found for other large U.S. cities.

Methods

Data for Chicago residents from the National Crime Victimization Survey (NCVS) are used to estimate serious violence and burglary rates, levels of reporting to the police, and residents’ justifications for reporting or not reporting. Levels and trends in NCVS and Chicago Police Department rates of serious violence and burglary are compared.

Results

The NCVS data show that while Chicago residents typically experience higher rates of these crimes than residents of other large cities, they report these crimes to the police at mostly similar rates. Reasons for and against reporting these crimes to the police are generally similar to victims elsewhere.

Conclusions

Despite a documented history of distrust in the police, Chicago residents do not appear to have notably lower rates of reporting serious violence or burglary to the police than residents of other large cities.

中文翻译：

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芝加哥的犯罪报告：1999-2018 年警察和受害者调查数据的比较

目标

任何司法管辖区的一个关键未知因素是未引起警方注意的犯罪范围。本研究使用警察和受害调查数据对芝加哥犯罪率进行了独特的比较。审查犯罪报告的水平以及受害者提供或反对向警方报告犯罪的原因。模式与美国其他大城市的模式进行了比较。

方法

来自全国犯罪受害调查 (NCVS) 的芝加哥居民数据用于估计严重的暴力和入室盗窃率、向警方报案的程度以及居民报案或不报案的理由。比较了 NCVS 和芝加哥警察局严重暴力和入室盗窃率的水平和趋势。

结果

NCVS 的数据显示，虽然芝加哥居民的此类犯罪率通常高于其他大城市的居民，但他们向警方报案的比率基本相似。向警方报告这些罪行的原因和反对向警方报告的原因通常与其他地方的受害者相似。

结论

尽管有对警察不信任的记录，但芝加哥居民向警察报告严重暴力或入室盗窃的比率似乎并没有明显低于其他大城市的居民。