Knives and sharp objects are tools used in a wide range of violent offences. However, knife offending may have different risk factors than general violence, thus requiring tailored interventions. This systematic review aims to synthesise evidence on the characteristics of knife offenders and interventions aimed at the reduction of knife crime. After screening 1352 titles and abstracts, 344 articles were fully considered of which 21 papers met the inclusion criteria and were quality assessed. These consisted of 15 offender characteristic studies and six intervention studies. Findings suggested that knife crime may be associated with illicit drug use, exposure to any violence as a witness, victim or perpetrator and mental health problems. Males were more at risk of engaging in knife crime in the community and females in domestic settings. Different risk factors were found between gang involved and non-involved knife offenders. Primary prevention strategies, such as stop and search, knife amnesties, media campaigns and curfews did not show a significant impact in reducing knife crime. By contrast, increasing offenders' access to tailored support regarding housing, education, and employment showed an impact in reducing weapon carrying. Further research is required in the area to support the reliability of outcomes.

刀具和尖锐物体是用于各种暴力犯罪的工具。然而，刀具犯罪可能具有与一般暴力不同的风险因素，因此需要量身定制的干预措施。本系统评价旨在综合有关持刀犯罪者特征的证据以及旨在减少持刀犯罪的干预措施。筛选1352篇标题和摘要后，344篇文章被充分考虑，其中21篇文章符合纳入标准并进行了质量评估。其中包括 15 项罪犯特征研究和 6 项干预研究。调查结果表明，持刀犯罪可能与非法药物使用、作为证人、受害者或肇事者遭受任何暴力以及心理健康问题有关。男性在社区和女性在家庭环境中从事刀具犯罪的风险更大。在参与团伙和非参与的持刀者之间发现了不同的风险因素。初级预防策略，例如停止和搜查、刀具特赦、媒体宣传和宵禁，在减少刀具犯罪方面没有显示出显着影响。相比之下，增加罪犯在住房、教育和就业方面获得量身定制的支持的机会对减少武器携带产生了影响。需要在该领域进行进一步的研究以支持结果的可靠性。就业显示出减少武器携带的影响。需要在该领域进行进一步的研究以支持结果的可靠性。就业显示出减少武器携带的影响。需要在该领域进行进一步的研究以支持结果的可靠性。