Uniform Crime Reporting Program Data [United States]: Police Employee (LEOKA) Data, 2000

Since 1930, the Federal Bureau of Investigation has compiled the Uniform Crime Reports (UCR) to serve as a periodic nationwide assessment of reported crimes not available elsewhere in the criminal justice system. Each year, this information is reported in four types of files: (1) Offenses Known and Clearances by Arrest, (2) Property Stolen and Recovered, (3) Supplementary Homicide Reports (SHR), and (4) Police Employee (LEOKA) Data. The Police Employee (LEOKA) Data provide information about law enforcement officers killed or assaulted (hence the acronym, LEOKA) in the line of duty. The variables created from the LEOKA forms provide in-depth information on the circumstances surrounding killings or assaults, including type of call answered, type of weapon used, and type of patrol the officers were on.

自1930年起，美国联邦调查局（Federal Bureau of Investigation, FBI）便编制统一犯罪报告（Uniform Crime Reports, UCR），旨在对刑事司法体系内其他渠道无法获取的全国报案犯罪情况开展定期评估。每年，该报告以四类文件形式发布：(1) 《已知犯罪与逮捕结案情况》（Offenses Known and Clearances by Arrest）；(2) 《被盗与追回财物情况》（Property Stolen and Recovered）；(3) 《补充凶杀报告》（Supplementary Homicide Reports, SHR）；(4) 《警务人员数据》（Police Employee (LEOKA) Data）。其中，警务人员数据（LEOKA）涵盖执法人员在执行公务期间遇害或遇袭的相关信息，因此该数据以LEOKA作为缩写标识。从LEOKA表单生成的各项统计变量，可详尽呈现遇害或遇袭事件的背景细节，包括接警类型、涉案武器类型以及警员执勤巡逻的类型。