It is an offence to drive with more than the following
amounts of alcohol in your body:
- 80 milligrams of alcohol in 100 millilitres of blood,
- 35 micrograms of alcohol in 100 millilitres of breath if
a breath test is used.
This can't be measured in units or drinks because peoples
bodies deal with alcohol at different rates. To be on the
safe side, people who plan to drive should not drink any alcohol.
Maximum fine £5,000 and/or up to 6 months imprisonment, mandatory
disqualification for at least 12 months for first offence,
at least 3 years for second offence within 10 years.