Uniform Crime Reporting Program Data [United States]: Police Employee (LEOKA) Data, 1998

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，联邦调查局（Federal Bureau of Investigation, FBI）便编制统一犯罪报告（Uniform Crime Reports, UCR），作为刑事司法系统内其他渠道无法获取的、针对已报案犯罪的定期全国性评估依据。每年，该类信息以四类文件形式报送：（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（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LEOKA为Law Enforcement Officers Killed or Assaulted的首字母缩写，该数据集涵盖执法人员在执行公务期间遇袭或殉职的相关信息。由LEOKA报表生成的数据集变量，可提供涉事杀人或袭击事件的详细背景信息，包括接警类型、所用武器类型以及警员当时的巡逻类型。