C oming just days before millions go to the polls, Zia Yusuf’s announcement that a Reform government would ‘prioritise’ the citing of migrant detention centres in areas with Green MPs or councils was certainly eye-catching. “That means areas like right here in Brighton ,” Reform’s shadow home secretary said with barely concealed relish in a video in which he paced the beachfront at the constituency which elected Britain’s first Green MP. The policy was accompanied by the launch of a webpage into which curious voters can enter their postcode to “check” the polls and see if their area was likely to be the site of a detention centre. Inputting E8 1EA – the postcode of Hackney town hall, where the Greens are this week tipped to win council elections – brings up a red box with an exclamation sign and the warning: “Yes – on the list. Your area will be prioritised to receive a detention centre under this policy.…