Restaurant opened by Home Secretary raided by immigration officials Abdush Siddiquie, owner of the Innovation Restaurant, claimed that the men who had been detained were not working for him. He insisted they had simply been living in a flats on the same premises at the restaurant. A spokesman for the UK Border Agency said: "We will not tolerate abuse of the immigration system and always investigate suspicions of illegal working. As a result of this operation we arrested five immigration offenders and will take appropriate action. It is the second time a restaurant boasting an association with Mrs May has been caught up in an immigration raid. In 2010 Malik's tandoori restaurant in Cookham near Maidenhead, where the Home Secretary had signed the guest book and was also featured on the website, was targeted by officials. Two suspected illegal immigrants were detained but again the owner of the restaurant was not aware of their status. Immigration has proved to be one of the most thorny issues of Mrs May's tenure as Home Secretary. Last year it emerged that border controls had been inexplicably relaxed allowing thousands of people to enter the country without proper checks being carried out. A report into the scandal found that anti-terror checks at Britain's airports were abandoned more than 350 times in two years because officials felt large queues at passport control were creating a health and safety issue. Mrs May recently announced the break-up of the Borders Agency in a bid to address the growing criticism of immigration controls.