Adult Arrests

The Metropolitan Police Department collects race and ethnicity data according to the United States Census Bureau standards (https://www.census.gov/topics/population/race/about.html). Hispanic, which was previously categorized under the Race field prior to August 2015, is now captured under Ethnicity. All records prior to August 2015 have been updated to “Unknown (Race), Hispanic (Ethnicity)”. Race, ethnicity and gender data are based on officer observation, which may or may not be accurate. MPD cannot release exact addresses to the general public unless proof of ownership or subpoena is submitted. The GeoX and GeoY values represent the block location (approximately 232 ft. radius) as of the date of the arrest and offense. Arrest and offense addresses that could not be geocoded are included as an “unknown” value. Arrestee age is calculated based on the number of days between the self-reported or verified date of birth (DOB) of the arrestee and the date of the arrest; DOB data may not be accurate if self-reported, and an arrestee may refuse to provide his or her date of birth. Due to the sensitive nature of juvenile data and to protect the arrestee’s confidentiality, any arrest records for defendants under the age of 18 or with missing age are excluded in this dataset. The Criminal Complaint Number (CCN) and arrest number have also been anonymized. This data may not match other arrest data requests that may have included all law enforcement agencies in the District or all arrest charges. Arrest totals are subject to change and may be different than MPD Annual Report totals or other publications due to inclusion of juvenile arrest summary, expungements, investigation updates, data quality audits, etc.大都会警察局（Metropolitan Police Department，后文简称MPD）依据美国人口普查局（United States Census Bureau）的标准收集种族与族裔数据，数据标准来源链接为：https://www.census.gov/topics/population/race/about.html。2015年8月之前，西班牙裔（Hispanic）曾被归类至种族字段，如今则归入族裔分类项下；所有2015年8月之前的记录均已更新为「未知（种族），西班牙裔（族裔）」。种族、族裔及性别数据均基于警员的现场观察，其准确性无法得到保证。除非提交所有权证明或法院传票，大都会警察局不会向公众披露精确地址信息。GeoX与GeoY值代表逮捕与犯罪行为发生当日的街区位置（半径约232英尺）；无法进行地理编码的逮捕及犯罪地址将以「未知」值纳入数据集。被捕者年龄根据其自我申报或经核实的出生日期（Date of Birth，缩写DOB）与逮捕日期之间的天数计算得出，若出生日期为自我申报，该数据可能存在误差，且被捕者有权拒绝提供出生日期。鉴于青少年数据的敏感性及保护被捕者隐私的需要，本数据集未纳入年龄未满18周岁或年龄信息缺失的被告的逮捕记录。刑事投诉编号（Criminal Complaint Number，缩写CCN）与逮捕编号均已完成匿名化处理。本数据集可能与其他涵盖特区所有执法机构或所有逮捕罪名的逮捕数据请求结果不一致。逮捕总数可能发生变动，且由于纳入了青少年逮捕汇总记录、犯罪记录消除、调查更新及数据质量审核等内容，其数值可能与大都会警察局年度报告或其他公开出版物中的逮捕总数存在差异。