Labour is reported to be considering lowering the drink driving limit from 35 micrograms of alcohol per 100 millilitres of breath to just 22 micrograms. This would bring England and Wales in line with Scotland. Does justice for potential victims of car crashes demand this? Although drawing the line on permissible risk is an incredibly difficult moral problem; empirical evidence shows lowering the drink-driving limit will make no difference, and motorists should probably not be required to give up yet more of their liberty either.

Lowering the drink driving limit is all costs and no benefits

In England and Wales today an average man is legally permitted to have around two pints of low-strength beer before driving, which will be cut down to just under one pint if Labour’s proposal

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