london britain could bring tough new control immigration european union without actually leave bloc former prime minister tony blair say sunday concern impact high level immigration public service house cite factor many vote leave eu last year referendum prime minister theresa may conservative government say free movement eu citizens come britain must end many brexit supporters blame blair government allow citizens former communist state settle immediately britain despite long transition period implement eu countries big influx eu migrants 2004. diversion possible brexit without address grievances give rise paradoxically respect referendum vote change blair say brexit stop write sunday time newspaper curtail things people feel damage european immigration domestic policy change agree change within europe freedom movement principle add blair lead labour government decade 1997. ask blair proposals defense minister michael fallon say government get deliver brexit country take decision leave european union mean freedom movement end ... get restrictions come tell bbc television leak government document last week say britain consider measure restrict immigration highest-skilled eu workers plan company call alarm paper publish sunday blair institute global change say government could take step include register eu migrants arrive keep track whether meet eu rule find work eu migrants could also force show evidence job offer allow enter britain without permission reside could ban rent open bank account access welfare benefit say paper also propose seek emergency brake implement temporary control migration service stretch strengthen version deal offer former prime minister david cameron ahead referendum uk n't need brexit curb eu immigration say former pm blair