Al-Muhajiroun
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 thus has not been proscribed . 
<triplet> British-based branch <subj> Hizb ut-Tahrir <obj> part of