The UK does not deny entry only when a traveler has an invalid passport, an incomplete application or a history of immigration violations.
In some cases, British authorities can go further and bar a foreign national from entering the country on grounds linked to what UK immigration law calls the “public good.”
That power, discreet but significant, is the focus of a briefing published on June 16, 2026, by the House of Commons Library, the UK Parliament’s research service for lawmakers and their staff. The document looks at “visa bans,” the term often used for entry bans targeting foreign nationals whose presence in the UK is considered undesirable.
The issue may sound highly legalistic. But it is becoming more tangible as the UK gradually expands its ETA, the Electronic Travel Authorization now required for many visa-exempt visitors.
Broad powers held by the Home Secretary
The British government has wide discretion to prevent a foreign national from entering the UK if their presence is not considered conducive to the public good.
One route is a personal exclusion decision by the Home Secretary. In such cases, a person may be barred from the UK before they have even attempted to travel or applied for a visa.
UK law does not provide a closed list of circumstances in which this power can be used. Government guidance, however, points to serious issues such as national security, war crimes, crimes against humanity, corruption, extremism or risks to the country’s foreign policy.
Since 2005, British authorities have also been able to rely on the concept of “unacceptable behaviors.” Introduced after the London bombings, the policy targets, among others, people who express views that could provoke, justify or glorify terrorist violence, encourage serious criminal acts or foster hatred that may lead to intercommunal violence in the UK.
Immigration officials can also refuse entry
Exclusion by the Home Secretary is not the only mechanism under UK immigration rules.
Immigration officials can also refuse or cancel permission when a person’s presence is considered contrary to the public good because of their conduct, character, associations or other reasons.
The grounds may overlap with those used for a ministerial exclusion, but the scope can be broader in practice. Authorities may, for example, take into account links to people involved in terrorism, extremism or war crimes, past or expected incitement of public disorder, involvement in criminal networks or certain corruption-related concerns.
This can apply to a visa, entry permission and also an ETA. An approved electronic travel authorization should therefore not be seen as guaranteed until departure. Travelers familiar with the U.S. ESTA system have recently had a concrete reminder of that reality: some authorizations that were initially approved were later canceled before departure. An electronic authorization can be reviewed, canceled or change status before travel.
The UK ETA follows the same basic logic. It makes travel easier for eligible visitors, but it remains a full travel authorization that can be refused or canceled if British authorities consider that public good grounds apply.
Decisions that are rarely explained in public
The Home Office does not regularly publish the names of people barred from entering the UK. The government may confirm some cases when a person’s identity is already public or when it believes there is a public interest in doing so, but it generally declines to comment on the exact reasons behind individual decisions.
As a result, the best-known cases tend to involve political, religious, media or cultural figures.
The briefing cites, among others, preacher Zakir Naik, who was excluded by Theresa May in 2010, and Hezbollah spokesman Ibrahim Moussawi, who was refused a visa in 2009. Other known cases include former Albanian Prime Minister Sali Berisha, Iranian dissident Maryam Rajavi, rapper Snoop Dogg, Dutch politician Geert Wilders and religious leader Sun Myung Moon. Some of those decisions were later challenged, lifted or overturned.
More recently, British authorities have used these powers in several high-profile cases. In 2026, eleven “far-right agitators” were barred from entering the UK ahead of a “Unite the Kingdom” rally, including Valentina Gomez. Political commentator Hasan Piker has also said he was denied entry to the UK, as has Cenk Uygur. In April 2026, Ye, formerly known as Kanye West, was reportedly refused an ETA, and therefore entry to the UK, ahead of a planned appearance at a music festival.
These examples do not mean entry bans apply only to well-known figures. They mainly show that decisions that usually remain out of public view tend to become visible when the person affected has a significant media profile.
Nearly 400 personal exclusions since 2010
The available data remains limited.
According to annual reports on the use of counterterrorism powers cited by the House of Commons Library, successive Home Secretaries personally ordered the exclusion of 392 people from the UK between May 2010 and December 2024.
That total does not capture every possible refusal. It does not include decisions made directly by immigration officials, for which no overall data is available. The real number of refusals or cancellations based on public good grounds is therefore difficult to measure precisely.
What this means for travelers
For the vast majority of travelers, these powers do not change the usual entry procedures. A tourist, business traveler or person visiting family in the UK has no particular reason to worry if their application is in order and no sensitive issue applies to their case.
Still, the framework is a reminder that a visa or ETA is not just an administrative formality. It is an authorization subject to the assessment of the authorities, in this case British authorities, even when the entire process takes place online.
With the ETA, that reality is becoming more visible. The UK wants to make arrival easier for eligible visitors, while also identifying certain profiles before boarding. Electronic authorization simplifies travel for most visitors, but it also gives authorities the ability to refuse entry when a person’s presence is considered contrary to the public good.
Behind a fast digital process, the final decision remains an immigration decision.
