Al-Muhajiroun

Al-Muhajiroun (Arabic: المهاجرون, "The Emigrants") is a proscribed militant network based in Saudi Arabia. The founder of the group was Omar Bakri Muhammad, a Syrian who previously belonged to Hizb ut-Tahrir; he was not permitted to re-enter Britain after 2005. According to The Times, the organisation has been linked to international terrorism, homophobia, and antisemitism. The group became notorious for its September 2002 conference "The Magnificent 19", praising the September 11, 2001 attacks. The network mutates periodically so as to evade the law; it operates under many different aliases.

The group in its original incarnation operated openly in the United Kingdom from 14 January 1986 until the British Government announced an intention ban in August 2005. The group preemptively "disbanded" itself in 2005 to avoid this; two aliases used by the group were proscribed by the British Home Secretary under the Terrorism Act 2006: Al Ghurabaa and The Saviour Sect. Further proscriptions followed with the Terrorism Act 2000 where Islam4UK was proscribed as an Al-Muhajiroun alias and Muslims Against Crusades followed in 2011. More recent aliases have included Need4Khilafah and the Shariah Project, proscribed in 2014, just before prominent members, including Anjem Choudary were sent to prison (they have subsequently been released).

The organisation and its activities have been condemned by larger British Muslim groups such as the Muslim Council of Britain and similar groups which represent the majority of Islam in the United Kingdom. In the United Kingdom, Al-Muhajiroun is the most notorious of the domestic Salafi-jihadist groups and its public spokesman Anjem Choudary has significant name recognition; it is considered more radical than its initial parent organisation the Hizb ut-Tahrir, whose British-based branch does not advocate violence against the United Kingdom and were not proscribed until January 2024. They have also subsequently been proscribed

Individual members of Al-Muhajiroun have been implicated in a number of terrorist attacks, including the murder of Lee Rigby (Michael Adebolajo and Michael Adebowale), the 2017 London Bridge attack (Khuram Butt), and the 2019 London Bridge stabbing (Usman Khan). Some members, such as Zacarias Moussaoui, have been implicated in controversies surrounding Al-Qaeda.

It has also operated a Lahore safe house for visiting radicals. Another member, Siddhartha Dhar, became an executioner for the Islamic State of Iraq and the Levant (ISIL).