There is a high prevalence of people with intellectual disability (ID) among those in police custody. Consequently, law enforcement officers (LEOs) at the frontline of the criminal justice system are commonly required to interact with people who have ID. Notwithstanding the frequency of these interactions, research indicates that police exchanges with persons with ID frequently take place against a backdrop of tenuously-resourced disability awareness training. At the time of writing, a paucity of research data exists with respect to the experiences of LEOs operating within this training vacuum at an international level. A better understanding of their experiences could meaningfully inform research, training and improve support programmes for LEO's. We systematically reviewed six databases to identify studies published up to 1st December 2019 reporting the experience of LEOs interfacing with suspects who have an ID. Following a review of 670 abstracts, 16 studies were identified from five countries involving 983 LEOs. LEOs identified 1) a need for specialised training; 2) challenges in identifying people with ID; 3) a need to improve safeguards and 4) challenges in supporting/communicating with individuals who have ID through the investigation process.

在警察羁押的人群中，智障人士（ID）的患病率很高。因此，通常需要刑事司法系统前线的执法人员（LEO）与有身份证明的人进行互动。尽管互动的频率很高，但研究表明，警方与身份识别人员的交流经常是在对资源缺乏的残疾人意识培训的背景下进行的。在撰写本文时，关于LEO在此国际真空培训范围内运作的经验的研究数据很少。更好地了解他们的经验可以为LEO的研究，培训和改善支持计划提供有意义的信息。我们系统地审查了六个数据库，以确定截至2019年12月1日发布的研究，报告了LEO与具有ID的嫌疑人进行交互的经验。在对670个摘要进行审查之后，从五个国家中鉴定出16个研究，涉及983个LEO。LEO确认了1）需要专门培训；2）在识别具有ID的人方面面临的挑战；3）需要改进保障措施，以及4）在调查过程中与具有ID的个人提供支持/沟通方面的挑战。