While I'm on the subject of bad cyclists, how about bad drivers, too? I read an article, yesterday, about new cameras in the U.K. that can see inside cars. They can tell if you're using a phone, wearing a seat belt and speeding, and maybe other things a driver ought not to be doing. Oh, it can also check your road tax and insurance to see if they are current. Some drivers are protesting, saying it's an invasion of their privacy. Laws are made for everyone, not just the bad drivers, so the way I see it, they're not entitled to privacy in a public place, especially when they intentionally break the laws.
A Londoner by birth, I used to drive from the coast to London, or from the Northamptonshire area to London, and it was always a relief to get out of London. (I've driven the wrong way in a bus lane when they were first introduced.) From what I read, things have gotten worse, if that's possible, which makes the new cameras a necessity.