So as good as their word, after 18 people protested outside New Scotland Yard with placards reading 'I oppose genocide, I support Palestine Action' they have all been arrested by the Metropolitan Police.
They will now of course find themselves in a sort of legal limbo as charges will be dropped (indeed rendered null & void) if the appeal by the Govt. fails to overturn the judgement that the proscription of Palestine Action was itself illegal.
h/t Guardian