Speaking of speeding how long do the points stay on your licence?
I still have points from 2013.
For either 3 years or 10 years, dependent on the offence and the ruling of the court 
A decade......for simply speeding.

I'm informed that if you speed in France the points remain for a maximum of 12 months.
No, not necessarily. As said Opti, it depends on the offence and the ruling of the court. ie if you speed at over 100 mph, and it is considered reckless, you may well get a short ban as well as the points which
may last 10 years. If you are convicted of DD you will be banned and have that noted on your licence with penalty points, they will last 10 years. A simple speeding of 40 in a 30 mph area will,usually just warrant the points being on your licence for the 3 years.
Obviously there are many variations of this, but it is down as always to the court to decide within their remit
