Letter: Tougher on drivers

We have more deaths on the road than other European countries. We are more densely populated than almost any other country in Europe - isn't this likely to ensure we have more deaths, regardless of how low the drink-drive limit is? If we had a zero drink-drive limit, would this mean that we would have no deaths from drunken drivers? Is there any way of knowing how low the limit must be before the effect of reduced levels has no further effect? We may already be at that level, given the number of cars on our roads.

NICK AUSTIN

Crowhurst, East Sussex