Law Commission Launches Major Consultation on Reform of Homicide Law (June 2026)

Background to the Review 

In August 2025, the Law Commission of England and Wales announced a comprehensive review of homicide law, covering murder and manslaughter. 

The review began with a call for evidence, which closed in Autumn 2025. We examined the review at that stage in Law Commission’s Review of the Law of Homicide and again in April 2026 in Homicide Review. 

On 17 June 2026, the Law Commission published a major consultation paper examining whether the current legal framework remains fair, effective, consistent and coherent. 

Homicide law was last reviewed in detail in the early 2000s. While reforms to partial defences were introduced through the Coroners and Justice Act 2009, broader proposals to restructure homicide offences were not adopted. 

This consultation marks the start of a potentially significant reform process. 

Key Proposals 

The Law Commission has outlined provisional proposals aimed at better reflecting differing levels of culpability: 

• Replacing the current two-tier structure (murder and manslaughter) with a three-tier model: 
• First-degree murder 
• Second-degree murder 
• Manslaughter 
• First-degree murder (intent to kill) would carry a mandatory life sentence 
• Second-degree murder (intent to cause serious injury) would carry a discretionary life sentence
• Introducing a new verdict of “murder with a partial defence”, allowing juries to reflect situations where there was intent to kill but reduced culpability (e.g. loss of control or diminished responsibility) 

This would replace the current position where such cases result in manslaughter convictions and may allow for more precise distinctions between different types of fatal conduct. 

What This Could Mean in Practice 

From a defence perspective, these proposals may lead to significant changes in how homicide cases are approached: 

• Charging decisions may become more nuanced, with prosecutors choosing between first- and second-degree murder 
• Disputes over intent—often central in homicide trials—may become even more finely contested 
• There may be fewer “all or nothing” outcomes between murder and manslaughter 
• Greater emphasis may be placed on psychiatric evidence and intent analysis, particularly in borderline cases 

In practical terms, cases that currently proceed as murder with a fallback to manslaughter may in future be framed differently from the outset. 

Proposed Reform of Manslaughter 

The consultation also considers changes to the structure of manslaughter: 

• Reckless manslaughter would apply where a defendant knowingly and unreasonably took a risk of death or serious injury 
• Unlawful act manslaughter would require proof of intent or recklessness as to injury 
• Gross negligence manslaughter would be reframed to require conduct that is exceptionally bad, replacing the current circular test 

These proposals are intended to improve clarity and coherence in an area of law often criticised as difficult to apply in practice. 

For a broader overview, see Voluntary and Involuntary Manslaughter. 

Complicity (Joint Enterprise) in Homicide 

The Law Commission is not proposing wholesale reform of joint enterprise. 

However, a more structured homicide framework may allow for clearer distinctions between principal offenders (those who commit the fatal act), and secondary participants (those who assist or encourage). This could lead to more proportionate outcomes in complex cases involving multiple defendants. 

For further discussion, see Joint Enterprise Lawyers. 

Structure of the Review 

The review is divided into three strands: 

1. Homicide offences – including murder and manslaughter 
   (see Murder vs Manslaughter) 
2. Defences to homicide – including partial defences such as diminished responsibility 
   (see Diminished Responsibility Guide) 
3. Sentencing – including the operation of mandatory life sentences 
   (see Sentencing for Homicide) 

The current consultation focuses on homicide offences. A further consultation will address defences and sentencing. 

Key Themes in the Consultation 

The consultation raises 23 questions, focusing on: 

1. Structure of Homicide Offences

• Whether the current distinction between murder and manslaughter remains appropriate 
• Whether a tiered system would better reflect culpability 

2. Definitions and Fault Elements

• How intention should be defined 
• Whether distinctions between intent to kill and intent to cause serious harm are sufficiently clear 

3. Manslaughter Reform

• Whether current categories remain fit for purpose 
• Whether reform would improve clarity and consistency 

4. Partial Liability

• Whether reduced culpability is properly reflected under the current framework 

5. Specific Case Types

• Deaths involving coercive control 
• Drug-related fatalities 
• Failures to seek medical assistance 

6. Interaction with Wider Criminal Law

• Including the operation of joint enterprise 

7. Practical Operation

• Whether the current law assists juries and courts in reaching fair outcomes 

Why This Matters 

Homicide law lies at the centre of the criminal justice system. Cases frequently turn on fine distinctions around intent, responsibility and causation. 

As explored in our Murder and Manslaughter Defence Services, these issues often determine whether a person faces a mandatory life sentence or a markedly different outcome. 

The Law Commission’s review is therefore not simply academic. If implemented, these proposals could fundamentally reshape how cases are charged, how juries are directed and how defence strategies are developed. 

Expertise Matters in the Most Serious Cases 

At Olliers Solicitors, we have extensive experience defending clients facing allegations of murder and manslaughter. 

These cases require careful analysis of intent and causation, expert handling of psychiatric and forensic evidence and detailed strategic preparation 

These are precisely the areas engaged by the current reform proposals. 

Our role as practitioners is not only to represent clients, but also to contribute to a wider understanding of how homicide law operates in practice. Consultations of this nature provide an important opportunity for experienced defence lawyers to help shape future reform. 

Timeline