"The minister also refused to give details on the immigration status of the suspects when pressed by several MPs"
.................. but after a quick examination at Manston where we didn't have anyone who could speak Farsi so we had released them to various rented accomodation around the country with a view to maybe interviewing them in a few months once we've got the staff, who admitedly are not experts on Middle East politics, and someone to interpret, with a view to considering their asylum claim (which we have no realistic way of considering the veracity of), so we'll give them Discretionary Leave to Remain because we daren't send anyone back to Teheran in case they were actually telling the truth and the mad mullahs string them up from a crane and the Guardian will never let us hear the last of it. Do you know I had that Jean Charles de Menezes in the back of my cab once?
https://www.standard.co.uk/news/crime/israeli-embassy-london-target-iranian-terrorism-plot-met-police-b1226439.html