In England and Wales, as far as possible for drivers is 80 milligrams of liquor for every 100 millilitres of blood, 35 micrograms per 100 millilitres of breath or 107 milligrams for every 100 millilitres of pee. In most other European nations, the cut-off is less, as a rule, 50 milligrams for every 100 millilitres […]