George Havenhand, the senior legal adviser at Spotlight on Corruption, said: “It is self-defeating for one arm of the state to impose sanctions on companies or their directors, while another allows them to sponsor UK visas, potentially leading to British citizenship. “The Home Office is in danger of looking as if it has fallen asleep at the wheel and needs to get on top of this fast. The Home Office should urgently update parliament on what went wrong and lessons learnt if it wants to maintain public trust in its handling of national security risks in the immigration system.”