[Bluepete]

I understand the difficulty people have with disqualified for life. My reasons for it are that by the very fact that someone kills a person by driving dangerously, means that they exhibited a standard of driving far below par.
There will have to have been an element if "sod it, I'm going for it" in their actions with scant regard for others safety for that prosecution to be brought.
People do not tend to suddenly become a poor driver overnight and go out and kill. All an extended re-test would achieve would be a driving instructor earning more money to get the client up to a pass standard. The driver would still have the same mind set behind the wheel. I think it would be very hard to change the way a person drives in all circumstances just by training them to pass a test.
Some people just shouldn't be allowed to drive. Full stop. The test is easy, we all see incompetent drivers every day who have passed the current test. There was a thread about a Celica driver on here somewhere who nearly kills every day. He may manage it one day, and be out driving again in a few years.
Why should we share the roads with people who are unable to control a car or make safe and reasoned decisions?

Tims response went on whilst I was typing!