Why hasn’t the UK outlawed the IRGC?

As the scale and barbarity of the Hamas terrorist assault on Israel begins to unfold, to no-one’s surprise Iran has leant its formal support to the insurgents. While thousands of rockets rain down on Israeli civilians and and Iran’s proxies pull men women and children out of their homes — murdering them in the streets — it’s worth remembering that the United Kingdom still has not proscribed that regime’s state terror exporters, the Islamic Revolutionary Guards Corps.