R (KBR, Inc) v Director of the Serious Fraud Office is a significant judgment for the field of law enforcement cross-border evidence collection, both in the United Kingdom and beyond. The UK Supreme Court ruled that the Director of the Serious Fraud Office's powers to compel disclosure of materials under section 2(3) of the Criminal Justice Act 1987 did not extend extraterritorially to foreign companies with no fixed UK place of business and which were not carrying on business in the UK. This judgment affirms the continued significance of the presumption against extraterritorially and identifies a general UK parliamentary preference that law enforcement obtain overseas material through cooperative processes like mutual legal assistance, rather than unilaterally. Much however remains unsettled for the future of this field, given developing issues in transnational criminal law, human rights – particularly rights of privacy and data protection – and public international law.

中文翻译：

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治外法权推定、司法互助与执法跨境取证的未来

R (KBR, Inc)诉严重欺诈办公室主任是对英国及其他地区执法跨境取证领域的一项重大判断。英国最高法院裁定，严重欺诈办公室主任根据 1987 年《刑事司法法》第 2(3) 条强制披露材料的权力并未在域外延伸至在英国没有固定营业地点且未在在英国做生意。该判决肯定了域外推定的持续重要性，并确定了英国议会普遍倾向于执法部门通过司法互助等合作程序而不是单方面获取海外材料。然而，鉴于跨国刑法中的发展问题，该领域的未来仍有很大的不确定性，