There is growing support at Westminster for banning the Muslim Brotherhood

The debate over whether Britain should proscribe the Muslim Brotherhood has moved further into the political mainstream, with parliamentarians, former ministers and counter-extremism specialists using a recent Westminster forum to examine what a possible ban could mean.

The discussion comes after the United States took steps against specific branches of the Muslim Brotherhood and as European governments continue to consider different approaches to Islamist networks. But in Britain, any decision would have to satisfy the country’s existing legal test for proscription rather than simply follow the American approach.

The issue was discussed at the sixth TRENDS Annual Forum on Political Islam, held at the House of Lords in London on September 8. The event brought together politicians, former ministers, researchers and security specialists to examine the Brotherhood’s alleged networks, financing, ideological influence and use of digital platforms. Participants included figures from several political backgrounds, while speakers also stressed the need to distinguish between Islamist political movements and Muslim communities generally.

The political argument has gained additional momentum because of developments in Washington.

In November 2025, President Donald Trump signed an executive order beginning a process to designate certain Muslim Brotherhood chapters as Foreign Terrorist Organizations and Specially Designated Global Terrorists. The order specifically instructed US officials to examine branches or subdivisions including those in Lebanon, Jordan and Egypt.

The American system is not identical to the British one, however.

Under the UK’s Terrorism Act 2000, the Home Secretary may proscribe an organisation where there is a reasonable belief that it is concerned in terrorism and where proscription is considered necessary and proportionate. The legal test covers organisations that commit or participate in terrorism, prepare for terrorism, promote or encourage terrorism, including unlawful glorification, or are otherwise concerned in terrorism.

That distinction is crucial to the current Westminster debate.

The Muslim Brotherhood is not currently a proscribed terrorist organisation in the United Kingdom. The Government has previously said that it does not routinely comment on whether particular organisations are under consideration for proscription. In December 2025, responding to a parliamentary question about whether Britain would adopt a designation similar to the United States, the Government reiterated that proscription requires the Home Secretary to believe that an organisation is currently concerned in terrorism and that proscription is necessary and proportionate.

The position also has a longer history.

A government review commissioned in 2014 and published in 2015 examined the Muslim Brotherhood’s origins, ideology, activities and links to extremism. The review did not result in proscription. Instead, the government said it would continue monitoring the views and activities of Brotherhood associates and consider whether action under counter-extremism policy or the legal proscription framework might be appropriate.

More than a decade later, the question is being revisited in a substantially different security and technological environment.

At the Westminster forum, some speakers argued that the Brotherhood should be confronted through legislation. Tom Wilson of the Counter Extremism Group and Dr Alan Mendoza of the Henry Jackson Society announced a “Ban the Brotherhood” campaign, while other participants questioned whether a legal prohibition by itself would be capable of dealing with a wider network of organisations and individuals.

That second question may prove just as important as the first.

A conventional ban is designed to restrict an organisation that meets the statutory threshold. But speakers at the forum described the Brotherhood as operating through flexible networks and community institutions rather than simply through one central organisation with an easily identifiable membership list. TRENDS researcher Hamad Al Hosani argued that such structures can operate across different institutions and make use of democratic freedoms.

If that assessment is correct, the practical consequences of proscription could extend well beyond the question of whether a particular organisation is placed on a government list.

Questions about funding, charitable structures, educational institutions, community organisations and online communications would potentially become part of the wider policy debate.

The British Government already has mechanisms for scrutinising charities and extremist activity, but the current debate is about whether those mechanisms are sufficient and whether additional legislation is required.

There is also a new dimension that was far less significant when the UK’s previous government review was published in 2015: artificial intelligence.

AI systems can produce large quantities of text, images, audio and video at relatively low cost. Social-media platforms can then distribute that material rapidly to large audiences. Participants at the Westminster forum therefore discussed the need to consider how extremist or ideological messaging might be produced and circulated through new technologies.

This creates a difficult policy problem.

Even if a particular organisation were prohibited, the underlying ideas could potentially continue to circulate through individuals, websites, informal networks or organisations that are legally distinct from the banned body. Any British strategy would therefore have to distinguish between lawful political or religious activity and activity that crosses an established legal threshold.

That distinction is particularly important because Islam and Islamism are not synonymous.

Islam is a religion followed by millions of British citizens and residents, while Islamism is a broad term used for political ideologies that seek to organise political and social life around particular interpretations of Islam. Different Islamist movements have different histories, objectives and relationships with violence. Treating the two concepts as interchangeable would therefore risk obscuring the specific organisations and conduct under examination.

Several participants at the Westminster discussion explicitly highlighted the need to avoid collectively stigmatising Muslim communities.

That concern is also relevant to prevention.

Speakers discussed education, critical thinking and digital literacy as possible tools for reducing vulnerability to extremist propaganda. The argument is that counter-extremism policy cannot rely exclusively on criminal law after harmful activity has already taken place.

Schools and community institutions can play a role in teaching young people how to evaluate information, recognise manipulative content and understand democratic principles. Digital literacy becomes increasingly important as AI-generated material makes it easier to create persuasive content at scale.

The debate is also taking place against a broader change in Britain’s national-security legislation.

In July 2026, the National Security (State Threats) Act came into force. The legislation gives the Home Secretary new powers to designate bodies involved in state-threat activity, with offences applying to those who support, assist or obtain material benefits from designated bodies. The Government describes the new system as providing powers comparable in some respects to terrorist proscription for groups involved in foreign-state threats.

Those powers do not amount to a ban on the Muslim Brotherhood, but they demonstrate that the UK’s legal framework for dealing with organised threats has been developing.

The Government has continued to say that it monitors the extremist threat landscape and will act where individuals or groups cross legal thresholds. In a parliamentary answer published in September 2026, the Government said it does not generally comment on individual groups but is committed to improving its understanding of extremist threats and acting where legal thresholds are crossed.

The question facing Westminster, therefore, is not simply whether Britain should copy Washington.

It is whether existing British law provides the appropriate tools for dealing with the specific evidence available about the Brotherhood and organisations allegedly connected to it.

There is also a question about what would happen after any proscription.

Would a ban disrupt funding and organisational structures? Would it make recruitment and public campaigning more difficult? Would associated networks adapt by changing names and structures? And how would authorities distinguish genuine organisational links from ordinary religious, charitable or political activity?

These are legal and operational questions rather than issues that can be settled by a single parliamentary announcement.

The figures presented at the TRENDS forum illustrate why supporters of stronger action believe the debate deserves further attention. According to the 2025 Global Brotherhood Power Index presented at the event, Europe accounted for 17% of the index’s assessment of Brotherhood influence, compared with 24.8% for the Americas, 22.5% for Asia and 20.2% for Africa. The index is a TRENDS research product and its methodology and conclusions should therefore be understood as the assessment of that organisation rather than an official British government measurement.

The Westminster meeting subsequently moved the debate into a wider European context, with a second forum held at the French Senate examining legislative responses and international cooperation. Participants argued that European governments may need greater cooperation in dealing with cross-border networks and digital extremism.

For Britain, however, the immediate issue remains the legal threshold.

A political desire to restrict an organisation is not by itself sufficient under the Terrorism Act 2000. The Home Secretary would need to apply the statutory test and consider whether proscription was necessary and proportionate.

That leaves Westminster with a complicated question.

A ban could potentially target an organisation if the legal conditions were met, but it would not automatically eliminate every network, message, funding channel or individual associated with a broader ideological movement.

The discussion now emerging in Parliament is therefore becoming less about a simple question of “ban or no ban” and more about what a comprehensive counter-extremism strategy should contain.

That could include scrutiny of financing, transparency around organisations receiving public or charitable benefits, stronger intelligence cooperation, digital monitoring within existing legal safeguards, education and prevention programmes, and cooperation with international partners.

Whether the British Government ultimately decides to proscribe the Muslim Brotherhood remains an open question. What has changed is that the issue is receiving renewed attention at Westminster, while developments in the United States and elsewhere in Europe have added urgency to a debate that Britain first formally examined more than a decade ago.

The central question may therefore be not only whether the Brotherhood should be banned, but whether any ban could achieve its intended effect without a wider strategy addressing the networks and technologies through which political and extremist ideas can continue to circulate.