Home secretary speeds up major part of bill governing asylum and refugees as new prime minister set to take over Shabana Mahmood will seek to shore up support for her controversial immigration bill on the progressive left of Labour, as she sets out plans to speed up the opening of new safe and legal routes that will permit thousands of refugees to come to the UK. The home secretary, who is the leading contender to stay in her job if Andy Burnham becomes prime minister, will next week introduce the legislation , which will also set new limits on immigration claims on human rights grounds and under modern slavery law. Removing modern slavery protections for any foreign national who has committed a crime and received a sentence, scrapping the previous 12-month threshold.