12 penalty points ≠ ban

Would reducing the drink drive limit to zero be the best use of time and resources in terms of accident prevention? How would it stop those who knowingly drink and drive now?
Time and resources? Piece of piss to tack on an amendment to whatever's trundling through right now. Political will is what's missing.

It wouldn't stop those who deliberately think "i'm over the limit, but balls to that" but it WOULD stop those who wouldn't deliberately drive and just drink a bit to try and stay under. At a wildly unstatistical guess the latter category vastly outnumber the former.