Causing Serious Injury by Dangerous Driving Solicitors
Causing serious injury by dangerous driving under Section 1A of the Road Traffic Act 1988 carries a maximum of 5 years' imprisonment in the Crown Court, a mandatory minimum 2-year disqualification, and a compulsory extended retest. The July 2023 Sentencing Guidelines introduced a two-dimensional harm and culpability matrix for this offence with specific starting points and ranges across six categories.
If you have been arrested or are under investigation for this offence in Manchester, Greater Manchester, Lancashire, Cheshire, or anywhere in England and Wales, our specialist solicitors are available 24 hours a day. Call 0161 3838855 for a free consultation.
The July 2023 guidelines for this offence require courts to consider both the culpability of the driver and the severity of the resulting injuries. Even at the lowest culpability level, if the injuries caused lifelong dependency or permanent irreversible harm, a custodial sentence is the expected outcome.
The Legislation — Section 1A Road Traffic Act 1988
The offence is created by Section 1A of the Road Traffic Act 1988, inserted by Section 143 of LASPO 2012, which came into force on 3 December 2012:
"A person who causes serious injury to another person by driving a mechanically propelled vehicle dangerously on a road or other public place is guilty of an offence."
Serious injury means physical harm amounting to grievous bodily harm for the purposes of the Offences Against the Person Act 1861: Section 2C(2)(a) RTA 1988. GBH means really serious harm. The dangerous driving test is identical to Section 1: the driving must fall far below the standard of the competent and careful driver and it would be obvious to such a driver that driving in that way was dangerous.
Harm Category Assessment
The July 2023 guideline divides cases into two harm categories based on the nature and permanence of the injuries:
- Harm 1: particularly grave or life-threatening injury; injury resulting in lifelong dependency on third party care or medical treatment; or permanent, irreversible injury or condition which has a substantial and long-term effect on day-to-day activities or work.
- Harm 2: all other cases of GBH-level injury.
Penalties and the Current Sentencing Framework
Penalty | Detail |
Maximum (Crown Court) | 5 years' imprisonment |
Maximum (magistrates' court) | 12 months' imprisonment |
Minimum disqualification (Crown Court) | 2 years with compulsory extended retest |
Mode of trial | Either-way offence |
Guideline effective | 1 July 2023 |
Endorsement | Obligatory |
Sentencing Starting Points and Ranges — July 2023 Harm/Culpability Matrix
The court must first determine culpability (A, B, or C) and harm (1 or 2) before selecting the appropriate starting point. The following table sets out the definitive guideline ranges:
Culpability A — Highest | Culpability B — Medium | Culpability C — Lowest | |
Harm 1 (Gravest injury) | Starting point: 4 years Range: 3–5 years | Starting point: 3 years Range: 2–4 years | Starting point: 2 years Range: 1–3 years |
Harm 2 (All other GBH) | Starting point: 3 years Range: 2–4 years | Starting point: 2 years Range: 1–3 years | Starting point: 1 year Range: 26 weeks–2 years |
Starting points apply before adjustment for aggravating and mitigating factors and before any guilty plea reduction (up to one third at the earliest opportunity).
Even at the lowest culpability level with Harm 2 injuries, the starting point under the July 2023 guidelines is 1 year's custody. For the most serious combination (Culpability A, Harm 1), the starting point is 4 years — near the maximum available in the Crown Court. The quality of legal representation at sentencing is critical at every level.
Culpability A — Highest
A deliberate decision to ignore the rules of the road; greatly excessive speed; racing or competitive driving; driving under a high level of alcohol or drugs; use of a handheld mobile phone as a principal cause; sustained dangerous driving; driving an HGV, LGV, or PSV (automatic Culpability A factor).
Culpability B — Medium
Driving with awareness of a dangerous vehicle defect or unsafe load; driving when deprived of adequate sleep or rest; driving whilst impaired by alcohol or drugs at a lower level; a brief but serious error creating obvious danger.
Culpability C — Lowest
Driving that fell just over the threshold for dangerous driving; a single momentary lapse with no additional aggravating features and the dangerous driving being brief.
Disqualification — Needham Formula
Where an immediate custodial sentence is imposed, the court extends the disqualification by half the custodial term added to the minimum 2-year base. Example: a 4-year sentence produces a disqualification of 2 years plus 2 years extension = 4 years total, plus the extended retest requirement.
R v Bannister [2009] EWCA Crim 1571 The objective test for dangerous driving applies regardless of the driver's skill or training. All drivers are assessed against the same standard of the competent and careful driver. |
R v Allen [2021] EWCA Crim 1272 Court of Appeal guidance on sentencing under Section 1A, confirming that the severity of the resulting injuries is a relevant actus reus element to be reflected within the sentencing range. The July 2023 guideline has now formalised this by incorporating harm as a distinct sentencing axis. |
R v Hughes [2013] UKSC 56 The manner of the defendant's dangerous driving must have materially contributed to the injuries. The mere coincidence of dangerous driving and injury is insufficient if the victim's own conduct was the true cause. |
Available Defences
The Driving was Not Dangerous
The most impactful defence. If the driving fell below but not far below the required standard, the appropriate charge is Section 2C: causing serious injury by careless driving — maximum 2 years. Expert accident reconstruction evidence is central.
The Injuries do not Constitute GBH
If there is a genuine issue as to whether the injuries cross the really serious harm threshold, this is a complete defence to Section 1A. Independent medical expert evidence should always be obtained and reviewed.
Causation
Causation can be challenged where the injuries resulted primarily from the victim's own conduct or a novus actus interveniens. Expert reconstruction and medical evidence supports this argument.
Automatism and Sudden Medical Emergency
An entirely unforeseeable medical event causing loss of control, of which the driver had no prior warning, may provide a complete defence.
If You Are Arrested or Interviewed Under Caution
If you have been involved in a fatal or serious injury collision and police wish to interview you about causing serious injury by dangerous driving, you have the right to free legal advice at the police station. You should exercise that right.
Do not speak to police without a solicitor. Answers given under caution can form part of the prosecution's case. At The Motoring Lawyers we provide 24-hour police station representation across England and Wales. Call 0161 3838855 immediately if you are arrested or invited to attend voluntarily.
Never attend a voluntary police interview without a solicitor. A voluntary interview carries the same legal risks as an interview following arrest. The caution given at the start is identical in both situations.
Legal Expenses Insurance
Before instructing a solicitor, check whether you have Legal Expenses Insurance (LEI) on your motor or home insurance policy. Many people do not realise this cover exists. We will check your position at the outset and advise clearly on funding options. Where LEI is unavailable or insufficient, we charge fixed, transparent fees.
How Our Solicitors Can Help
- 24-hour police station representation across England and Wales
- Advising on the harm and culpability matrix under the July 2023 guidelines at the outset
- Instructing independent accident reconstruction experts to challenge the prosecution's evidence
- Obtaining independent medical evidence on the nature and classification of the injuries
- Advising on mode of trial, plea, and charge negotiations with the CPS
- Preparing targeted mitigation for sentencing across all guideline factors
- Crown Court and magistrates' court representation from first hearing to conclusion
Frequently Asked Questions
What are the starting points for causing serious injury by dangerous driving under the 2023 guidelines?
The July 2023 guidelines use a matrix of culpability (A, B, or C) and harm (1 or 2). The highest starting point is 4 years (Culpability A, Harm 1) and the lowest is 1 year (Culpability C, Harm 2). All starting points are custodial. Harm 1 applies to the gravest injuries including permanent, irreversible conditions and lifelong dependency on care.
What is the difference between Harm 1 and Harm 2?
Harm 1 covers particularly grave or life-threatening injuries, lifelong dependency on third-party care or medical treatment, or permanent and irreversible injury or condition with a substantial long-term effect on day-to-day activities or work. Harm 2 covers all other GBH-level injuries. The distinction has a significant effect on the starting point and range.
Can the Section 1A charge be reduced to careless driving?
Yes. If the evidence does not clearly establish that the driving fell far below the required standard, it may be appropriate to negotiate with the CPS for a charge of causing serious injury by careless driving under Section 2C, which carries a maximum of 2 years. We will advise on the strength of any such argument from the prosecution's evidence.
Is Section 1A an either-way offence?
Yes. It can be tried in either the magistrates' court or the Crown Court. In serious cases the prosecution will usually seek Crown Court trial. In the magistrates' court the maximum is 12 months. We will advise you on the most appropriate venue.
Do I need a solicitor for causing serious injury by dangerous driving?
Yes. This is a serious Crown Court offence with significant sentencing consequences. The prosecution will rely on expert accident reconstruction and medical evidence. You need specialist legal representation who can commission and challenge that evidence effectively from the outset.
Don’t Face This Alone – Get Expert Advice Today
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