Won't affect me at all - completely teetotal for the past five years.

And it won't affect the piss-heads either, the ones who break the rules now will still break them if the limit's lowered - they don't care.

The only ones who will be affected are those who obey the rules already, and who will continue to do so.

It's not so much a lower limit that's needed, it's more coppers enforcing obedience of the existing limit.

But I agree, the only safe amount to drink when driving is....none.

IMHO.