The stabbing of two Jewish men in north London’s Golders Green district has propelled the British government toward what would be a significant tightening of protest law. Prime Minister Keir Starmer, in an interview broadcast on Saturday, declared that banning some pro-Palestinian demonstrations could now be justified, particularly when marchers chant phrases such as “globalise the intifada”. The attack, which police have classified as terrorism and in which a 45-year-old Somali-born British national has been charged with attempted murder, has crystallised a debate that has simmered since the October 2023 Hamas assault on Israel and the subsequent Gaza war. Viewed from Whitehall, the stabbings represent a threshold. Starmer told the BBC that Britain had entered “a completely new phase”, and he now argues that the cumulative effect of weekend after weekend of marches creates an environment in which antisemitic incidents flourish. He emphasised that free expression and peaceful protest remain fundamental, but that certain chants cross into incitement and should face prosecution—and, in some cases, the marches themselves should be prohibited. This marks a departure from the previous Labour leader Jeremy Corbyn’s era, when the party was dogged by accusations of failing to confront antisemitism within its own ranks.

The prime minister’s visit to the scene on Thursday was met with boos from residents who accused him of doing too little, too late. Analysts in London note that Starmer, a former director of public prosecutions, is acutely aware of the legal hurdles: banning marches requires a specific threshold of serious public disorder, and the Home Office has traditionally resisted blanket bans. Yet he has pointed to France, where pro-Palestinian protests were restricted after the October 7 attacks, as a model that Britain might follow. The Metropolitan Police, already stretched, faces the difficult task of distinguishing between legitimate expressions of solidarity with Gaza and rhetoric that intimidates Jewish communities. From Washington, the Biden administration has watched closely, but has not yet weighed in publicly. The United States has its own campus protests over Gaza, and any British move will be scrutinised for its compatibility with First Amendment traditions, even as the White House has condemned the rise in antisemitic incidents globally.

Meanwhile, in the Arab world and across the Middle East, Starmer’s remarks are being reported with alarm. Critics in Beirut and Doha argue that banning the marches would effectively criminalise solidarity with Palestinians and stifle the only channel through which many in Britain have expressed opposition to Israel’s military campaign. The Arabic press has highlighted the irony of a Labour leader—whose party once championed anti-colonial causes—now invoking the spectre of the intifada, a term that in Palestinian contexts denotes resistance but in European discourse is often equated with terrorism. The Gulf News and Al-Monitor both note that the broader context of rising Islamophobia and far-right activity has been sidelined in the immediate aftermath of the Golders Green attack.

Looking ahead, Starmer’s gambit carries considerable political risk. It may shore up his standing among Jewish voters and centrists who demand robust action against antisemitism, but it risks alienating the left flank of his party and the large number of Muslim voters who have felt increasingly alienated by Labour’s stance on Gaza. The Green Party, which has surged in local polls partly on the back of pro-Palestinian sentiment, has already criticised the proposed clampdown. Opposition from civil liberties groups is all but certain. The prime minister has promised a “whole of society response” to antisemitism, but translating that into concrete police powers without inflaming community tensions will test the limits of Britain’s liberal protest tradition. The next few weeks will indicate whether the stabbings in Golders Green become a legislative watershed or a flashpoint that deepens the very divisions Starmer says he wants to heal.