The high-profile espionage case involving allegations of spying for China has collapsed, with the Director of Public Prosecutions, Stephen Parkinson, attributing the failure to the Deputy National Security Adviser’s refusal to classify China as an ‘enemy’ during the relevant period. In a detailed letter to MPs, Parkinson explained that Matt Collins, the Deputy National Security Adviser, could not confirm that China posed an active threat to UK national security between 2021 and 2023, a stance that proved ‘fatal to the case.’ This revelation comes ahead of Parkinson’s appearance before a parliamentary committee next week, where government witnesses are expected to scrutinize his written evidence. The case involved Christopher Cash and Christopher Berry, who were charged under the Official Secrets Act 1911 in April 2024 for allegedly passing information to a Chinese intelligence agent. However, the charges were dropped in September 2024 after the Crown Prosecution Service (CPS) withdrew its case, citing insufficient evidence. Parkinson’s letter outlines the legal complexities, emphasizing that prosecutors needed to prove to a jury that China was considered an ‘enemy’ during the alleged offenses. This requirement became insurmountable after Collins declined to provide the necessary factual evidence, stating that such a classification did not align with the former Conservative government’s policy. The case’s collapse has sparked a political blame game, with attention now focused on the role of officials in national security decisions. The CPS’s inability to secure critical evidence from Collins ultimately led to the case’s unraveling, raising questions about the UK’s approach to handling espionage allegations involving foreign powers.