Law Enforcement Agency Identifiers Crosswalk, United States, 2012

Criminal justice research may require merging disparate data sources that have no common match keys. The Law Enforcement Agency Identifiers Crosswalk (LEAIC) file facilitates linking reported crime data with socio-economic data. It does this by having a record for each law enforcement agency, law enforcement reporting entity, and access identifier for the National Crime Information Center (NCIC). Essentially, if an entity (law enforcement agency or section of a law enforcement agency) is capable of reporting crime information, it is included in the file. The LEAIC records contain common match keys for merging reported crime data and Census Bureau data. These linkage variables include the Originating Agency Identifier (ORI) code, Federal Information Processing Standards (FIPS) state, county and place codes, and Governments Integrated Directory government identifier codes.

刑事司法研究往往需要整合具有不同来源且缺乏共同匹配键的数据集。执法机构标识符对照表（LEAIC）文件有助于将犯罪报告数据与社会经济数据相连接。该文件通过为每个执法机构、执法报告实体以及国家犯罪信息中心（NCIC）的访问标识符建立记录来实现这一目标。简言之，若某一实体（执法机构或执法机构的某个部门）具备报告犯罪信息的能力，则其信息将被包含在文件中。LEAIC记录包含了合并犯罪报告数据与人口普查局数据的通用匹配键。这些链接变量包括起源机构标识符（ORI）代码、联邦信息处理标准（FIPS）州、县和地方代码，以及政府综合目录的政府标识符代码。