The UK currently has one of the highest blood alcohol limits for driving in the world, at 80mg of alcohol per 100ml of blood. Most European countries have a limit of 50mg.
Drivers with a blood alcohol level of 50-80mg are 2-2.5 times more likely to crash than those with no alcohol in their blood, and up to six times more likely to be involved in a fatal collision.
Scotland recently reduced its limit and they have already seen an improvement in road safety.
See how Alcohol affects the NHS in this graphic.
9,930 drink driving accidents PA and 230 drink driving deaths
NHS Annual Cost £3.5 Billion