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National Security Act 2023: UK Foreign Influence Registration Scheme—registration duties, political and enhanced tiers, exemptions and offences

Published on: 12 September 2025

Published by a LexisNexis Corporate Crime expert
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Article summary

The National Security Act 2023

The NSA 2023 received Royal Assent on 11 July 2023. Part 1 introduces new criminal offences, such as espionage (NSA 2023, ss 1–3), sabotage (NSA 2023, s 12) and foreign interference (NSA 2023, ss 13–16), and commenced on 20 December 2023. Part 4, titled ‘Foreign activities and foreign influence registration scheme’, came into effect on 1 July 2025 via the National Security Act 2023 (Foreign Activities and Foreign Influence Registration Scheme: Publication) Regulations 2025, SI 2025/675, and the National Security Act 2023 (Foreign Activities and Foreign Influence Registration Scheme: Information and Disclosure) Regulations 2025, SI 2025/408.

The Foreign Influence Registration Scheme

FIRS aims to improve openness regarding foreign influence in UK politics, and to deliver greater confidence about the actions of foreign powers that present the highest risk to the UK. FIRS obliges individuals and organisations to register arrangements with foreign powers and specified foreign power-controlled bodies where they are instructed to undertake particular activities in the UK. It also requires certain foreign entities to record activities they conduct themselves in the UK. These measures collectively strengthen oversight of foreign political engagement in the UK overall...

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