Illegal in the UK now.
No? You just fill in a form. https://www.gov.uk/guidance/register-as-a-keeper-of-less-tha...
I'm guessing you actually mean "basically 'illegal' because of some regulations"?
Not true.
No? You just fill in a form. https://www.gov.uk/guidance/register-as-a-keeper-of-less-tha...