This article asks how terrorism expertise has been mobilized in recent trials on terrorism financing. How is expert knowledge concerning ongoing and complex political situations involving alleged terrorism translated into factual evidence before a court of law? What kind of sources do courts use in terrorism cases, and what kind of expert knowledge is acknowledged or ignored? Through analysis of concrete cases under the United Kingdom (UK) Terrorism Act (2000) and the Dutch penal law Article 421Sr, we show how contested terrorism expertise becomes ‘certified knowledge’ that holds together as grounds for conviction before a court of law. This article contributes to socio-legal debates on legal knowledge in two ways. First, we analyse the everyday, material practices of gathering, presenting, and contesting expertise in relation to security. Second, the article analyses new case material and a particular kind of knowledge – namely, security knowledge and terrorism expertise – to identify patterns in what is deemed relevant for the court.

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从竞赛到定罪：法庭上的恐怖主义专业知识

本文询问最近在有关恐怖主义筹资的审判中如何动员了恐怖主义专门知识。如何将有关涉嫌恐怖主义的正在进行和复杂的政治局势的专家知识在法院面前转化为事实证据？法院在恐怖主义案件中使用什么样的资料来源，并且承认或忽略了什么样的专家知识？通过对英国《联合王国恐怖主义法》（2000年）和荷兰刑法第421Sr条下的具体案件进行分析，我们展示了有争议的恐怖主义专门知识如何成为“证明的知识”，这些知识共同构成了在法庭上定罪的依据。本文通过两种方式为关于法律知识的社会法律辩论做出了贡献。首先，我们分析与安全有关的日常，实质性实践，以收集，呈现和竞赛专业知识。第二，