Uninsured mayhem.

"More than two million rogue drivers escaped prosecution last year as an underclass of untaxed and uninsured drivers grows at an alarming rate, figures reveal today."
I am guessing that the police have simply stopped bothering. It just isn't worth the form filling nonsense to achieve a few points on a probably non-existent licence and a £60 fine.
If the points amount to a disqualification - big deal. If the bad guys then drive - they will not go to prison.
What is the point? It is so much easier to target drivers who go out of their way to be 100% legitimate and make a minor slip up.

LINK: http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=559506&in_page_id=1770