Crime Survey for England and Wales, 2016-2017

<p>The&nbsp;<em>Crime Survey for England and Wales</em>&nbsp;(CSEW)&nbsp;asks a sole adult, in a random sample of households, about&nbsp;their, or their household's, experience of crime victimisation in the previous 12 months. These are recorded in the victim form data file (VF). A wide range of questions are then asked covering demographics and crime-related subjects such as attitudes to the police and the criminal justice system (CJS) these variables are contained within the non-victim form (NVF) data file. In 2009, the survey was extended to children aged 10-15 years old; one resident of that age range is also selected from the household and asked about their experience of crime, and other related topics. The first set of children's data covered January-December 2009 and is held separately under SN 6601. From 2009-2010, the children's data cover the same period as the adult data and are included with the main study.</p><p>The CSEW was formerly known as the British Crime Survey (BCS), and has been in existence since 1981. The 1982 and 1988 BCS waves were also conducted in Scotland (data held separately under SNs 4368 and 4599). Since 1993, separate&nbsp;<a title="Scottish Crime and Justice Surveys" href="https://beta.ukdataservice.ac.uk/datacatalogue/series/series?id=2000046">Scottish Crime and Justice Surveys</a>&nbsp;have been conducted. Up to 2001, the BCS was conducted biennially. From April 2001, the Office for National Statistics took over the survey and it became the CSEW. Interviewing was then carried out continually and reported on in financial year cycles. The crime reference period was altered to accommodate this.&nbsp;</p><p>Further information may be found on the ONS&nbsp;<a title="Crime Survey for England and Wales" href="https://www.ons.gov.uk/surveys/informationforhouseholdsandindividuals/householdandindividualsurveys/crimesurveyforenglandandwales">Crime Survey for England and Wales</a>&nbsp;web page and for the previous BCS, from the GOV.UK&nbsp;<a title="BCS Methodology" href="https://www.gov.uk/government/statistics/british-crime-survey-methodology">BCS Methodology</a>&nbsp;web page.</p><p> </p><p><em>Secure Access data<br></em>In addition to the main survey, a series of questions covering drinking behaviour, drug use, self-offending, gangs and personal security, and intimate personal violence (IPV) (including stalking and sexual victimisation) are asked of adults via a laptop-based self-completion module (questions may vary over the years). Children aged 10-15 years also complete a separate self-completion questionnaire. The questionnaires are included in the main documentation, but the data are only available under Secure Access conditions (see SN 7280), not with the main study. In addition, from 2011 onwards, lower-level geographic variables are also available under Secure Access conditions (see SN 7311).<br><br><span style="font-style: italic;">New methodology for capping the number of incidents from 2017-18</span><br>The CSEW datasets available from 2017-18 onwards are based on a new methodology of capping the number of incidents at the 98th percentile. Incidence variables names have remained consistent with previously supplied data but due to the fact they are based on the new 98th percentile cap, and old datasets are not, comparability has been lost with years prior to 2012-2013. More information can be found in the 2017-18 User Guide (see SN 8464) and the article ‘<a title="Improving victimisation estimates derived from the Crime Survey for England and Wales" href="https://www.ons.gov.uk/peoplepopulationandcommunity/crimeandjustice/articles/improvingvictimisationestimatesderivedfromthecrimesurveyforenglandandwales/2019-01-24">Improving victimisation estimates derived from the Crime Survey for England and Wales</a>’.&nbsp;</p> <span style="font-style: italic;">Latest Edition</span><span style="font-style: italic;">&nbsp;Information</span><br>For the third edition (March 2020), data based upon a new methodology of capping the number of incidents at the 98th percentile have been made available. Incidence variables names have remained consistent with previously supplied data but due to the fact they are based on the new 98th percentile cap, and old data sets are not, comparability has been lost with years prior to 2012-2013. More information can be found in the&nbsp;<a href="http://doc.ukdataservice.ac.uk/doc/8464/mrdoc/pdf/8464_2017-18_csew_adults_dataset_user_guide.pdf" target="_blank" style="background-color: rgb(255, 255, 255);">user guide</a>&nbsp;that accompanies the 2017-2018 CSEW study, held under&nbsp;<a href="https://beta.ukdataservice.ac.uk/datacatalogue/studies/study?id=8464" target="_blank" style="background-color: rgb(255, 255, 255);">SN 8464</a>.

<p><em>英格兰和威尔士犯罪调查（Crime Survey for England and Wales，简称CSEW）</em>会从随机抽取的家庭样本中选取一名成年受访者，询问其本人或其家庭在过去12个月内遭遇犯罪侵害的经历。相关信息会记录在受害方表单数据集文件（Victim Form，简称VF）中。随后调研会涵盖大量人口统计学与犯罪相关议题，例如对警方及刑事司法系统（Criminal Justice System，简称CJS）的态度，这类变量存储于非受害方表单数据集文件（Non-victim Form，简称NVF）中。2009年，该调查新增了针对10至15岁儿童的模块：从受访家庭中选取一名该年龄段的儿童，询问其遭遇犯罪的经历及其他相关议题。首批儿童调查数据覆盖2009年1月至12月，以研究编号SN 6601单独存储。2009至2010年度起，儿童调查数据与成人调查数据周期保持一致，并入主研究数据集。</p>
<p><em>英格兰和威尔士犯罪调查</em>前身为英国犯罪调查（British Crime Survey，简称BCS），自1981年起开展。1982年与1988年的英国犯罪调查波次还在苏格兰境内实施（相关数据以研究编号SN 4368与SN 4599单独存储）。1993年起，苏格兰地区开始开展独立的<em>苏格兰犯罪与司法调查（Scottish Crime and Justice Surveys）</em>。2001年之前，英国犯罪调查每两年开展一次。2001年4月起，英国国家统计局（Office for National Statistics，简称ONS）接管该调研，并将其更名为<em>英格兰和威尔士犯罪调查</em>。此后调研持续开展，并以财年周期发布报告，犯罪调查的参考周期也随之调整。</p>
<p>更多相关信息可查阅英国国家统计局官网的<a title="英格兰和威尔士犯罪调查" href="https://www.ons.gov.uk/surveys/informationforhouseholdsandindividuals/householdandindividualsurveys/crimesurveyforenglandandwales">《英格兰和威尔士犯罪调查》</a>页面，以及英国政府官网的<a title="英国犯罪调查方法" href="https://www.gov.uk/government/statistics/british-crime-survey-methodology">《英国犯罪调查方法》</a>页面以获取前身英国犯罪调查的相关资料。</p>
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<p><em>安全访问数据</em><br>除主调研外，调研还会通过基于笔记本电脑的自填模块向成人受访者询问一系列议题，包括饮酒行为、药物使用、自我伤害、帮派问题、个人安全以及亲密伴侣暴力（Intimate Personal Violence，简称IPV，包含跟踪骚扰与性侵害）（各年度的问卷题目可能存在差异）。10至15岁的儿童也需填写独立的自填问卷。问卷内容已纳入主调研文档，但相关数据仅可通过安全访问权限获取（详见研究编号SN 7280），并未随主研究数据集一同发布。此外，自2011年起，低层级地理变量数据也仅可通过安全访问权限获取（详见研究编号SN 7311）。<br><br><span style="font-style: italic;">2017-18年度起实施的事件数量封顶新方法</span><br>2017-18年度及之后发布的<em>英格兰和威尔士犯罪调查</em>数据集，采用了将事件数量封顶至第98百分位的全新方法。尽管发生率变量的命名与此前发布的数据保持一致，但由于新数据集基于该98百分位封顶规则，而旧数据集未采用此规则，因此与2012-2013年度之前的数据集已丧失可比性。更多相关信息可查阅2017-18年度用户指南（详见研究编号SN 8464）及文章《<a title="提升英格兰和威尔士犯罪调查所得的侵害估计精度" href="https://www.ons.gov.uk/peoplepopulationandcommunity/crimeandjustice/articles/improvingvictimisationestimatesderivedfromthecrimesurveyforenglandandwales/2019-01-24">提升英格兰和威尔士犯罪调查所得的侵害估计精度</a>》。</p>
<p><span style="font-style: italic;">最新版本信息</span><br>2020年3月发布的第三版数据，采用了将事件数量封顶至第98百分位的全新方法。尽管发生率变量的命名与此前发布的数据保持一致，但由于新数据集基于该98百分位封顶规则，而旧数据集未采用此规则，因此与2012-2013年度之前的数据集已丧失可比性。更多相关信息可查阅搭载于2017-2018年度<em>英格兰和威尔士犯罪调查</em>研究（研究编号SN 8464）的<a href="http://doc.ukdataservice.ac.uk/doc/8464/mrdoc/pdf/8464_2017-18_csew_adults_dataset_user_guide.pdf" target="_blank" style="background-color: rgb(255, 255, 255);">用户指南</a>。</p>