Causing Death by Dangerous Driving: Sentence, the Law and Your Defence
If you or someone close to you is facing an allegation of causing death by dangerous driving, you are dealing with one of the most serious offences in the criminal courts of England and Wales.
Since 28 June 2022, the maximum sentence has been life imprisonment, and the law that decides the outcome turns on fine distinctions: how far the driving fell below the expected standard, what caused the death, and what evidence the prosecution can actually prove. This page explains the offence, the current sentence, and the defences that may apply, and how the criminal defence team at Allen Hoole can help.
In short: Causing death by dangerous driving is an offence under section 1 of the Road Traffic Act 1988. It is committed when a person's driving falls far below the standard of a competent and careful driver and, as a result, someone dies. For offences committed on or after 28 June 2022, the maximum penalty is life imprisonment (it was 14 years for offences before that date). The case is heard in the Crown Court, and a conviction also brings a driving disqualification of at least 5 years and a compulsory extended re-test.
Speak to our criminal defence solicitors about your case. We offer 24-hour advice and representation from the first police interview onwards.
What is causing death by dangerous driving?
The offence sits in section 1 of the Road Traffic Act 1988. Two things have to be established. First, that the driving was dangerous; second, that the dangerous driving caused the death.
"Dangerous driving" has a specific legal meaning under section 2A of the Act. Driving is dangerous if:
- the way the person drove fell far below what would be expected of a competent and careful driver, and
- it would be obvious to a competent and careful driver that driving in that way would be dangerous.
The word that does the work is "far". Driving that merely falls below the expected standard is the lesser offence of careless driving, not dangerous driving. That distinction often decides which charge a person faces and, with it, the sentence they are exposed to. If the allegation against you is the lesser one, see our page on causing death by careless driving, which is a separate offence with a lower maximum sentence.
What is the sentence for death by dangerous driving?
The sentence depends on when the offence was committed and on how the court assesses the seriousness of the driving.
Maximum sentence: life imprisonment
For offences committed on or after 28 June 2022, the maximum sentence is life imprisonment. This was increased from the previous maximum of 14 years by the Police, Crime, Sentencing and Courts Act 2022. For offences committed before that date, the 14-year maximum still applies. This is why older guidance, and some other websites, still refer to "14 years": that figure is now out of date for current offences.
How the court decides the sentence
Causing death by dangerous driving is an indictable-only offence, so it is sentenced in the Crown Court using the Sentencing Council's guideline. The judge places the case into a culpability category, based on how dangerous the driving was and the surrounding circumstances:
- Category A (highest culpability): a flagrant disregard for the rules of the road and the danger to others, for example, prolonged, deliberate or grossly excessive bad driving.
- Category B (medium culpability): driving that created a significant risk, falling between the highest and lowest categories.
- Category C (lower culpability): driving that was dangerous but at the lower end, for example, a brief but serious lapse.
Each category carries a starting point and a range, which the judge then adjusts up or down for aggravating factors (such as previous convictions, driving under the influence, or using a mobile phone) and mitigating factors (such as genuine remorse, a previously good record, or a momentary nature to the driving).
Driving ban and extended re-test
A conviction brings a compulsory disqualification from driving. For offences on or after 28 June 2022, the minimum disqualification is 5 years (increased from 2 years), and the court must also order an extended re-test before the person can drive again. The disqualification is in addition to any prison sentence, not instead of it.
Talk to us about how the sentencing guideline applies to your case.
How the offence is proved: the legal test
To convict, the prosecution must prove both that the driving was dangerous and that it caused the death. Causation is frequently where these cases are won or lost. The prosecution does not have to show that the driving was the only cause of death, but it must be more than a minimal cause. Where another factor contributed, the actions of another driver, a pre-existing road defect, a mechanical fault, or the conduct of the person who died, the question of whether your driving caused the death becomes a genuine battleground.
Because the case is built largely on reconstruction and expert opinion rather than eyewitness certainty, the detail matters: vehicle speeds, sightlines, road conditions, the timing of events, and the mechanical state of the vehicle.
Available defences
Every case turns on its own facts, and the right approach depends on the evidence. These are the defences and arguments that most often arise.
No causation
The strongest position is often that the driving, even if it was dangerous, did not cause the death, or was not more than a minimal cause of it. If an intervening event broke the chain, the offence is not made out.
Mechanical failure
A sudden and unforeseeable mechanical failure, a tyre blow-out, brake or steering failure, that the driver did not know about and could not reasonably have discovered, can mean the standard of driving was not at fault. Where the defect was known or should have been spotted on inspection, the position is different.
Medical emergency
A driver who suffers a sudden, disabling medical event with no warning, for example, a first seizure, stroke or loss of consciousness, may not be driving dangerously in the legal sense. A known condition that the driver ignored will not assist.
External factors
Conditions outside the driver's control, the dangerous actions of another road user, an obscured or defective road layout, or sudden environmental hazards, can show that the driving did not fall far below the expected standard in the circumstances actually faced.
A momentary lapse
Dangerous driving requires the standard to fall far below that of a competent and careful driver. A brief lapse of attention, without more, may amount to careless driving rather than dangerous driving, which carries a substantially lower sentence and is a critical distinction to argue at the charging stage.
Why expert evidence is decisive
These cases are rarely decided on the bare facts. The defence stands or falls on expert evidence, and instructing the right experts early can change the charge or the outcome. The areas that most often matter are:
- Collision reconstruction, to challenge the prosecution's account of speed, distance and avoidability.
- Vehicle examination to establish whether a mechanical fault contributed.
- Toxicology, where alcohol, drugs or prescribed medication are in issue.
- Forensic pathology, to test the prosecution's account of how and when death occurred and whether the driving caused it.
Allen Hoole instructs leading independent experts in each of these fields and builds the defence around their findings rather than reacting to the prosecution's.
What happens after a charge: from investigation to court
Most cases begin with a police investigation, often before any charge. What you say in the first interview can shape the entire case, which is why early legal advice matters so much. After investigation, the Crown Prosecution Service decides whether to charge and with which offence, dangerous or careless. Because causing death by dangerous driving is indictable only, the case proceeds to the Crown Court, where it is tried before a judge and jury and, if there is a conviction or guilty plea, sentenced by the judge.
See how our criminal defence team represents clients at every stage.
Why choose Allen Hoole
Allen Hoole is one of the largest criminal defence firms in the South West of England, with offices in Bristol, Cheltenham and Keynsham, acting for clients across England and Wales. We are regulated by the Solicitors Regulation Authority (SRA number 462128) and hold Lexcel and Criminal Litigation accreditation.
We provide 24-hour advice and representation, from the first police interview through to trial and sentence, and we have direct access to the collision reconstruction, toxicology and forensic pathology experts these cases demand.
Contact Allen Hoole for urgent advice.
Frequently asked questions
What is the maximum sentence for causing death by dangerous driving?
For offences committed on or after 28 June 2022, the maximum is life imprisonment. For offences before that date, the maximum is 14 years. The actual sentence depends on the culpability category and the aggravating and mitigating factors in the case.
Is there a minimum sentence for death by dangerous driving?
There is no fixed minimum prison term; the sentence is set within the Sentencing Council's guideline ranges. However, a conviction carries a minimum 5-year driving disqualification (for offences on or after 28 June 2022) and a compulsory extended re-test.
How many years do you get for death by dangerous driving?
It varies widely. Lower-culpability cases attract shorter custodial terms, while the most serious cases can reach the upper end of the guideline or beyond. The judge starts from the guideline category, then adjusts for the specific facts.
Will I definitely go to prison?
A custodial sentence is likely on conviction given the seriousness of the offence, but the length depends heavily on culpability and mitigation, and the charge itself, dangerous versus careless, can sometimes be challenged. Early specialist representation is the best way to protect your position.
What is the difference between death by dangerous driving and death by careless driving?
Dangerous driving falls far below the standard of a competent and careful driver; careless driving falls below it. Causing death by careless driving is a separate, less serious offence with a lower maximum sentence. See our causing death by careless driving page.
Which court hears death by dangerous driving cases?
The Crown Court. The offence is indictable only, so it is tried before a judge and jury.
Does causing death by dangerous driving apply in Scotland?
This page covers the law in England and Wales. Scotland has its own sentencing guidelines for causing death by driving, so the position there differs.
Can I get legal aid for a death by dangerous driving case?
Funding options, including legal aid eligibility, depend on your circumstances. Ask us about funding your defence, and we will explain the options clearly.
Facing this charge? Allen Hoole's criminal defence solicitors are available 24 hours a day. Contact us now for confidential advice.