The current deportation rules were brought in during 2012 around the middle of Cameron's reign.

I don't think there is a 5 year residential immunity per se. You can apply for naturalisation after 5 years of residency (or 3 years if you are married to a UK citizen). If you haven't obtain naturalisation then I would assume you aren't immune never mind how long you have been resident except for certain exempted groups.

Once you are naturalised then clearly the only country you can be deported to is the UK as that is then the only country of relevance.

I have just been looking at this, and it seems the current rules are part of the European Convention on Human Rights (ECHR). 47 states of Europe are signed up to it, including Russia.

Incidentally, we will still be bound by its rules when we leave the EU because it is a different legal system.

https://en.wikipedia.org/wiki/European_Convention_on_Human_Rights

As an add on, this is the sort of rubbish that gets people annoyed.

Haven't got enough money to buy warm winter clothes with !!! Neither have the pensioners in this country, and many more.

https://politicaluk.co.uk/2020/12/h...m8EJcXBV7ibQNwb0I7rTaUzYXD9QgqpDsjP6zoQI

" A solicitor for Duncan Lewis said: “It has been a month since the Home Office announced the decision, and none of our clients have received the increase in cash support and no arrangements have been put in place to obtain back payments,” said Primisha Chudasama, a solicitor for Duncan Lewis.

“Many clients have faced a significant deterioration in their mental health and sense of self-worth, particularly as they are constantly worrying about how they are going to meet their essential living needs,” she said. “Often, clients have had to choose between phone credit … and buying warm clothing for the winter months, or using public transport to attend important appointments.”

Yet again down to poor Governance, the Government set the rules, if those rules are so poor that they can be challenged successfully in a court of law then its a failure by those who set the rules.

There are a lot of highly paid people setting those rules, what are we paying them for, failure!

We seem to have been locked into setting laws that are either ineffective or unenforceable for many years now, not only does it waste a lot of money it also takes up a lot of parliament time which could be used on other matters of importance which are continually sidestepped.

And yes, I will blame many Governments for this, the growth of spin-doctors, especially during the Blair years has a lot to answer for.