UK Borders Bill

Is there not a danger that those who are here illegally and are working on the fringes of illegality will, when faced with biometric checks for something or other, be forced deeper into the illegal economy and further out of sight of the authorities that can provide help and assistance—and out of sight of the law enforcement agencies that are looking for them? Might not people be pushed further underground because of fear of ID checks of the sort that the right hon. Gentleman describes?