How can a person be guilty of manslaughter without any intention to kill or cause serious harm?
Involuntary manslaughter: unlawful act (constructive) manslaughter (an unlawful and dangerous act causing death) and gross negligence manslaughter (a breach of a duty of care, causing death, that is grossly negligent under Adomako).
An Eduqas A-Level Law guide to involuntary manslaughter. Explains unlawful act (constructive) manslaughter and gross negligence manslaughter under Adomako, with worked scenario answers and the AO2 application the paper rewards.
Reviewed by: AI editorial process; not yet individually human-reviewed
Have a quick question? Jump to the Q&A page
Jump to a section
What this dot point is asking
Eduqas criminal law requires you to know involuntary manslaughter, where there is no intention to kill or cause grievous bodily harm: unlawful act (constructive) manslaughter (an unlawful and dangerous act causing death) and gross negligence manslaughter (a grossly negligent breach of a duty of care causing death, under Adomako). The skill is to apply the elements of each to a scenario (AO2) and to evaluate them (AO3).
The answer
Unlawful act (constructive) manslaughter
Gross negligence manslaughter
Gross negligence manslaughter (R v Adomako, an anaesthetist who failed to notice a disconnected tube) does not require an unlawful act; liability rests on a grossly negligent breach of a duty of care. Its four elements are:
- A duty of care: owed on ordinary negligence principles (including duties arising from a contract, a relationship, the assumption of responsibility, or the creation of a dangerous situation, Evans).
- A breach of that duty (falling below the standard of the reasonable person).
- Causation: the breach must cause the death.
- Gross negligence: the negligence must be so bad in all the circumstances that it goes beyond a mere matter of compensation and amounts in the jury's view to a crime, judged against a serious and obvious risk of death at the time of the breach (Rose, where the risk was not obvious without further tests; Broughton on causation).
Examples in context
A strong answer picks the correct form and runs its four elements precisely.
Try this
Q1. Explain the elements of unlawful act (constructive) manslaughter. [10 marks]
- What the marker wants. Precise AO1: an unlawful criminal act (not an omission, Lowe; not a civil wrong, Franklin), which is dangerous (a sober and reasonable person foresees some harm, Church), which causes death, with the mens rea for the unlawful act only (DPP v Newbury).
Q2. An electrician wires a house so badly that the homeowner is electrocuted and dies. Advise on the electrician's liability for gross negligence manslaughter. [20 marks]
- Cue. An AO2 application: a duty of care arises from the work undertaken; the dangerous wiring is a breach; it causes the death; and the jury may find the negligence gross given a serious and obvious risk of death (Adomako; Rose), so gross negligence manslaughter is made out.
Exam-style practice questions
Practice questions written in the style of WJEC Eduqas exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Eduqas Component 2 2022 (scenario)20 marksDuring a fight outside a pub, Tom throws a single punch at Will, who falls, hits his head on the kerb and dies. Advise on Tom's liability for unlawful act manslaughter. [a scenario in the style of Component 2; the real paper tariff is 25, AO1 and AO2]Show worked answer →
A mainly AO2 scenario on constructive manslaughter.
The elements (Church; Larkin; DPP v Newbury). (1) An unlawful act: the punch is a battery, a criminal unlawful act (not a mere omission, Lowe). (2) Dangerous: a sober and reasonable person would foresee the risk of some harm, not serious harm (Church); a punch clearly carries that risk. (3) Causation: but for the punch, Will would not have fallen and died (White), and the punch is an operating and substantial cause; the fall is the natural result, not a break in the chain. (4) Mens rea: only the mens rea for the unlawful act (the battery) is needed, not foresight of death.
Conclusion. All four elements are satisfied (this mirrors single-punch cases), so Tom is liable for unlawful act manslaughter.
A top answer runs the four elements of constructive manslaughter on the facts and concludes.
Eduqas Component 3 2021 (essay)20 marksAnalyse and evaluate the law on gross negligence manslaughter. [an essay in the style of Component 3; the real paper tariff is 25, AO1 and AO3]Show worked answer →
A mainly AO3 essay. Explain Adomako, then evaluate the offence.
The law. Adomako requires a duty of care (ordinary negligence principles), a breach of that duty, the breach causing death, and negligence so gross that it goes beyond civil liability and amounts to a crime, with a serious and obvious risk of death (Rose; Broughton on causation and the risk being assessed at the time).
Evaluation. Strengths: it allows liability for serious failures (medical, workplace) where there was no intention; the threshold of grossness keeps ordinary negligence out of the criminal law. Weaknesses: 'gross' is circular and left to the jury (it is criminal if the jury thinks it criminal), creating uncertainty and possible inconsistency; the risk must be of death (not just serious harm), which Rose shows is strict; and there are overlaps with corporate manslaughter. Reform to a clearer test is argued for.
A top answer explains the Adomako elements and evaluates the certainty and fairness of the test, then concludes.
Related dot points
- The general elements of criminal liability: actus reus (conduct, omissions and causation), mens rea (intention and subjective recklessness), the coincidence of actus reus and mens rea, transferred malice and strict liability.
An Eduqas A-Level Law guide to the general elements of criminal liability. Explains actus reus, omissions and causation, mens rea (intention and recklessness), coincidence, transferred malice and strict liability, with worked scenario answers and the AO2 application the paper rewards.
- Murder and voluntary manslaughter: the actus reus and mens rea of murder, and the partial defences of loss of control and diminished responsibility under the Coroners and Justice Act 2009 that reduce murder to voluntary manslaughter.
An Eduqas A-Level Law guide to murder and voluntary manslaughter. Explains the actus reus and mens rea of murder and the partial defences of loss of control and diminished responsibility, with worked scenario answers and the AO2 application the paper rewards.
- The non-fatal offences against the person: assault and battery (common law), assault occasioning actual bodily harm (s47), malicious wounding or inflicting grievous bodily harm (s20), and wounding or causing grievous bodily harm with intent (s18) under the Offences Against the Person Act 1861.
An Eduqas A-Level Law guide to the non-fatal offences against the person. Explains assault, battery, s47, s20 and s18 of the Offences Against the Person Act 1861, their actus reus and mens rea and the leading cases, with worked scenario answers and the AO2 application the paper rewards.
- The general defences: insanity and automatism, intoxication (voluntary and involuntary), self-defence and the prevention of crime, consent, and duress by threats and of circumstances.
An Eduqas A-Level Law guide to the general defences. Explains insanity, automatism, intoxication, self-defence, consent and duress, and how they reduce or remove liability, with worked scenario answers and the AO2 application the paper rewards.
- The scenario application question (AO2): the IRAC structure (issue, rule, application, conclusion), identifying the legal issues in a factual problem, applying authority to the facts, and reaching a reasoned conclusion.
An Eduqas A-Level Law guide to the scenario application question (AO2). Explains the IRAC structure, identifying the issues, applying the law to the facts and reaching a conclusion, with worked examples and the technique the Component 2 paper rewards.
Sources & how we know this
- Eduqas A Level Law (A150) specification — WJEC Eduqas (2017)