Britain stands at a decisive juncture. After years of documented plots, intimidation campaigns and foreign interference on home soil, the government has proscribed Iran's Islamic Revolutionary Guard Corps under the National Security (State Threats) Act. The move comes not a moment too soon. It signals a long-absent willingness to place the protection of citizens and institutions above diplomatic equivocation.
The designation follows the identification of IRGC-linked activity involving direct threats to life and systematic intimidation across the UK. This is no abstract diplomatic spat. It is the sharp end of a hostile state's campaign to export its repression onto British streets, targeting dissidents, journalists and anyone daring to criticise the Tehran regime.
The National Security (State Threats) Act grants the Home Secretary authority to designate organisations reasonably believed to be involved in foreign power threat activity where necessary to protect the UK's safety or interests. It emerged from the 2025 review by Jonathan Hall KC, which exposed the glaring gap in existing powers against state-linked threats that fall short of full terrorism yet still menace national security.
Legal teeth with real bite
Under the legislation it becomes a criminal offence to support, assist or receive a material benefit from a designated organisation. Penalties reach up to 14 years in prison. The Act does not sweep automatically; ministers must judge that statutory tests are met. Designations will now proceed without delay when required, while preserving exemptions for legitimate diplomatic, humanitarian and journalistic work.
The IRGC already carries terrorist designations from the United States, Canada and several other nations. Britain has sanctioned the organisation in its entirety for human rights abuses and regional destabilisation. Yet until today it operated in a legal grey zone on these shores, its proxies free to plot, harass and threaten with relative impunity.
Pattern of aggression ignored for too long
The IRGC stands linked to plots targeting dissidents, cyber attacks and threats against critical infrastructure on UK soil. In 2024 two Romanian men were convicted for an attack on an Iran International journalist in London, an assault tied directly to the Iranian state. Such incidents form part of a persistent pattern that parliamentary early day motions, opposition voices and campaign groups have highlighted since at least 2024. Calls to act under the Terrorism Act 2000 or equivalent measures went largely unheeded by previous administrations.
