Numerous migrants have been convicted of serious crimes in December, including violent sexual assaults, attempted murder and attempted kidnapping. The slew of convictions have sparked renewed concerns over the UK’s border security, and the vetting of those entering the country. Alp Mehmet, chairman of Migration Watch, said: “How much more evidence do ministers and the migrants’ rights industry need before accepting that our asylum system is not fit for purpose?” He added: “It rolls out the welcome mat while turning a blind eye to dangerous criminals who waltz into Britain in their thousands. Every crime they commit ruins lives.” Mr Mehmet said: “The only way to protect the British public and make the country safer is to stop these vile men from entering the country in the first place.” Among the most serious cases this month include asylum seeker Amer Mohammed, 24, from Eritrea, who was sentenced to nine years in prison on 18 December after violently sexually assaulting a woman in Margate, Kent. Also included in the grim statistics is the convicted terrorist, Rebwar …