Think your be surprised how well some people here who shall we say are comiting visa fruad do.
Yes some live like virtual slaves and surely they should be rescused by the authorities and helped to return home to safety.
But i have personal experience of people who are here on say student visas for long long periods and have very nice jobs and earning well over the minimum wage.
I can also say i have witnessed people from cleaning firms and temp agencies who i knew who borrowed others NI and id. Some of these people i had personal contact with spoke very good english and had been in the UK for considerable times.
A few years ago there was one guy who had a very well paid job who was only caught when he left the UK and was on the way back from the channel isles and found to be a crimnal and deserter from i think it was ukraine. He also had a fake driving license which he was driving on, having been in his company car on many occasions he made you think how you were covered if he did have an accident? This was before in depth checks were made in most UK firms.
I think we have to be careful we dont either demonise people on one hand or treat them as always helpless victims on the other.
Many of those with out the right to either live and/or work in the UK, who I had personal contact with also for various reasons in some cases concocted other lies about themsleves both at work and in their social lives. Often even lovers and very close friends had no idea of their true identiy.
For example one cleaner who once found to be ilegaly here in the Uk was sacked on the spot. He disapeared and his girlfriend who worked with the one of the companies security guard at another workplace. The security guard told me it was he who had got the guy his job and had as a favour to the guys girlfriend even handed the guys cv and some paperwork to the cleaning company supervisor.
Both the Girlfriend and Security guard ended up with being investigated and fingers of suscpion pointing at them even though both had been fed lies by the chap.
I understand people would keep their cards close to their chest but it must have been worrying to these people what else they hid from them?