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Drink Driving and Drug Driving Penalties in the UK

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What Are the Drink Driving and Drug Driving Laws in the UK?

Drink driving offences are primarily governed by the Road Traffic Act 1988

Under the law, it is an offence to: 

  • Drive or attempt to drive while above the legal alcohol limit 
  • Drive while unfit through drink or drugs 
  • Be in charge of a vehicle while over the limit 

The legislation also introduced specific offences relating to drug driving, where drivers exceed legal limits for certain controlled drugs. 


Drink driving offences are primarily governed by the Road Traffic Act 1988

Under the law, it is an offence to: 

  • Drive or attempt to drive while above the legal alcohol limit 
  • Drive while unfit through drink or drugs 
  • Be in charge of a vehicle while over the limit 

The legislation also introduced specific offences relating to drug driving, where drivers exceed legal limits for certain controlled drugs. 

The legal alcohol limit depends on the type of test conducted. 

In England and Wales, the limits are: 

  • 35 micrograms of alcohol per 100 millilitres of breath 
  • 80 milligrams of alcohol per 100 millilitres of blood 
  • 107 milligrams of alcohol per 100 millilitres of urine 

Drivers who exceed these limits may be charged with drink driving. 

Drug driving laws apply to both illegal drugs and certain prescription medications. 

Legal limits exist for substances including: 

  • Cocaine 
  • Cannabis 
  • Ketamine 
  • MDMA 
  • Benzoylecgonine 
  • Certain prescription medications 

What Are the Penalties for Drink Driving in the UK?

The penalties for drink driving vary depending on the nature of the offence and the alcohol level detected. 

Driving or Attempting to Drive While Over the Limit

The maximum penalties include: 

  • 6 months’ imprisonment 
  • An unlimited fine 
  • A minimum 12-month driving disqualification 

Where alcohol levels are significantly above the legal limit, courts are more likely to impose longer disqualification periods. 

Being in Charge of a Vehicle While Over the Limit

Where a person is found in charge of a vehicle but not driving, the penalties may include: 

  • up to 3 months’ imprisonment 
  • a fine 
  • 10 penalty points or disqualification 

Refusing to Provide a Specimen

Refusing to provide a breath, blood or urine sample when lawfully required by police is treated seriously. 

Penalties may include: 

  • up to 6 months’ imprisonment 
  • an unlimited fine 
  • a minimum 12-month driving ban 

What Are the Penalties for Drug Driving?

Drug driving offences can carry similar penalties to drink driving offences. 

Drivers convicted of drug driving may face: 

  • a minimum 12-month driving disqualification 
  • an unlimited fine 
  • up to 6 months’ imprisonment 

In addition to criminal penalties, a conviction will remain on a driving licence for 11 years

Where drug driving leads to an accident or serious harm, courts may impose significantly harsher sentences. 

How Do Courts Decide Drink and Drug Driving Sentences?

Courts follow sentencing guidelines when determining the appropriate penalty. 

Factors considered include: 

  • The level of alcohol or drugs detected 
  • Whether the offence involved dangerous driving 
  • Previous motoring or criminal convictions 
  • Whether there was an accident 
  • Whether passengers were present 

Higher readings will normally result in longer driving disqualifications and higher fines

The Sentencing Council provides detailed guidance on how courts assess these cases.

What Happens After a Drink or Drug Driving Arrest?

Police have powers to stop vehicles and require drivers to provide roadside breath tests. 

If a driver fails the test or is suspected of drug impairment, they may be arrested and taken to a police station for further testing. 

Typical stages include: 

  • Roadside breath test or drug wipe 
  • Arrest and transport to the police station 
  • Evidential breath, blood or urine testing 
  • Charge or release pending further investigation 
  • Court proceedings if charged

A conviction will result in a criminal record and may also affect insurance premiums and employment opportunities. 

Drink and drug driving allegations can have serious consequences. 

A conviction may result in: 

  • Loss of driving privileges 
  • Financial penalties 
  • A criminal record 
  • Professional or employment consequences 

Legal advice is important to ensure that the evidence is properly examined and that the case is handled appropriately throughout the court process. 

If you are facing allegations relating to drink or drug driving, seeking advice from experienced criminal defence solicitors can help you understand the legal process and the options available to you.

Speak to a Criminal Defence Solicitor

Drink and drug driving allegations require careful legal handling. If you are facing an investigation or court proceedings relating to these offences, obtaining professional legal advice at an early stage is essential. 

Our criminal defence solicitors advise clients across England and Wales on motoring offences including drink driving and drug driving cases. If you require legal advice regarding a current investigation or charge, you can contact our team to discuss your situation.

Key points to understand include: