British medical journal (Clinical research ed.)
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Br Med J (Clin Res Ed)
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The legal limit for drinking and driving in Britain is 80 mg/dl (17.4 mmol/l) of alcohol in the blood. This was chosen 20 years ago on the basis of studies that have recently been reanalysed. ⋯ It is suggested that the legal limit should be reduced from 80 mg/dl to 50 mg/dl (10.9 mmol/l) and random breath testing introduced as in most Nordic countries. A zero limit is proposed for learner and first year drivers, who are likely to have accidents even with low concentrations of alcohol in their blood.