Please report dangerous drivers to the police - Roadsafe. Report to plod, not just whinge here.

And tried for two years to delay the case being heard:

http://www.westendextra.com/news/2014/dec/maida-vale-motorist%E2%80%99s-defence-team-%E2%80%98held-gun-court%E2%80%99s-head%E2%80%99-says-judge

It can now be revealed that the 85-year-old’s defence team launched multiple appeals to dismiss the charges on medical grounds, claiming that he had suffered an “episode” and could not be held responsible for his actions. When the appeal failed two doctors testified that it was “unfair” to try an elderly man who was suffering mental health problems as a result of the accident. But Judge Peter Clarke QC warned the team that they were “holding a gun to the court’s head saying ‘don’t you dare tip him over’” and allowed the case to go ahead citing the public interest.