Crime Incidents in 2017

On February 1 2020, the methodology of geography assignments of crime data was modified to increase accuracy. From January 1 2020 going forward, all crime data will have Ward, ANC, SMD, BID, Neighborhood Cluster, Voting Precinct, Block Group and Census Tract values calculated prior to, rather than after, anonymization to the block level. This change impacts approximately one percent of Ward assignments. This change was not applied to datasets pre-2020.

2020年2月1日，为提升犯罪数据地理属性分配的准确性，相关方法完成优化调整。自2020年1月1日起，所有犯罪数据的选区（Ward）、社区咨询委员会分区（ANC）、单成员区（SMD）、商业促进区（BID）、社区集群（Neighborhood Cluster）、投票区（Voting Precinct）、街区组（Block Group）及普查区（Census Tract）等地理属性值，将在街区级匿名化处理前完成计算，而非匿名化处理之后。此次调整约影响1%的选区分配结果，且未应用于2020年之前的数据集。