There is always some scam being discovered and then come the howls of protests when these are caught, as they often see themselves as victims and think they should not be deported as they have spent years in the UK (on their lies)
Not so long ago it was all the various scams for those on the Tier 1 General visas, and these still appear on forums as they can no longer stay in the UK. Before that it was the press discovering the fraud on the English tests TOEIC and all the deportations there, with even now, some unable not bring themselves to the attention of UKVI any longer (need ILR, or a BRP for their ILR) and getting caught that way. Those taking the tests for those to be able to cheat, are also being refused by the Home Office as the tests were recorded and voice recognition software used to catch those who took tests for others.
There were all the bogus universities, where "students" were caught, even if they has since had a valid work visa; and all the changes that brought in for future students, where some can no longer work on a student visa or bring their dependants with them anymore.
Then there are those people who used deception to get their child a British passport and then tried to use that child to stay in the UK, but now find that UKVI check and advise the passport office to revoke that passport. Or it’s the passport office refusing to renew a British citizen passport of a child of an EU citizen as they now check if that parent had PR at the time of the child's birth as they had claimed. These now have to pay 1k to register their child as British citizen, even though they though they had got away with it and got that for free.
The UK is not the only popular country that has these problems with fraud; this was in the news this week.
"US fake university: India anger after students arrested"
https://www.bbc.co.uk/news/world-asia-india-47106199When the UK found a large bogus college a few years ago, instead of deporting the fake students, they gave those students a chance to find another college. Then sat back and watched which bogus college they went to next and closed them down too.
You won't stop the fraud happening, but those who have got away with their deception for years, are now finding they have not got away with it. Even British citizenship can removed if they used deception in any application, even if they didn't use that visa for their British citizenship application. A new law came in about 2002 to make it easier to remove British citizenship, and another in 2014 to compliment that previous law.
