There are strict alcohol limits for drivers (The limits in Scotland are different to the rest of the UK):-
The Drink Drive Limits
|Level of alcohol||England, Wales and Northern Ireland||Scotland|
|Micrograms per 100 millilitres of breath||35||22|
|Milligrammes per 100 millilitres of blood||80||50|
|Milligrammes per 100 millilitres of urine||107||67|
IT IS IMPOSSIBLE to say exactly how many drinks this equals - it’s different for each person, due to some of the following reasons:
- your weight, age, sex and metabolism (the rate your body uses energy)
- the type and amount of alcohol you’re drinking
- what you’ve eaten recently
- your stress levels at the time
You could be imprisoned, banned from driving and face a fine if you’re found guilty of drink-driving.
The actual penalty you get is up to the magistrates who hear your case, and depends on your offence.
For more information please visit: https://www.gov.uk/drink-driving-penalties