A Modern Law of Homicide for Scotland
25 Sep 2025
The Scottish Law Commission has published its Report on the Mental Element in Homicide, including a draft Homicide (Scotland) Bill.
An outline of the contents of the Report can be found in the Executive Summary and News Release. A Business and Regulatory Impact Assessment and a Report on Public Opinion Research conducted by Thinks Insight & Strategy (formerly BritainThinks) on our behalf are also available.
The Report, which concludes the SLC’s project on Homicide, makes recommendations which seek to simplify, clarify and modernise the law of homicide in Scotland and improve legal certainty by:
- Removing the vague and emotive concept of “wickedness” from the definition of murder, without changing the type of criminal conduct properly recognised as murder. This ensures that the language used to define Scots homicide offences is clear, accessible, and suitable for modern criminal law. The common law offence of murder is currently framed in terms of a person showing “wicked intention” or displaying “wicked recklessness” when causing the death of another.
- Requiring that murder can only be committed where a person causes the death of another person and either (i) intends to cause the death or (ii) assaults the person and behaves with an utter disregard for whether the person, or any other person, lives or dies. The proposed definition in section 1 of the draft Bill seeks to provide a clear distinction between the crimes of murder and culpable homicide and requires some form of intentional conduct on the part of the perpetrator.
- Proposing a statutory definition of culpable homicide in section 2 of the draft Bill, reflecting the current common law offence. Culpable homicide is defined as being committed where a person causes the death of another person by either (i) assaulting the person or (ii) behaving in a manner which endangers another person and with an utter disregard for the consequences.
- Clarifying that Scots homicide law does not have a doctrine of constructive malice (which automatically attributes liability for murder where the killing occurs in the course of some other crime, such as robbery) thus confirming that individuals cannot be held liable for murder in cases where they do not act with the necessary mental element for murder as set out in section 1 of the draft Bill.
- Removing the outdated and gendered defence of sexual infidelity provocation, so that such infidelity can no longer provide a basis for the partial defence of provocation. Instead, only physical violence will be deemed a provocative act that can reduce a murder conviction to one for culpable homicide. A proposed statutory definition of the defence of provocation is set out in section 5 of the draft Bill.
Lady Paton, the lead Commissioner for the project, said:
“It is essential that Scots homicide law is fit for purpose in the 21st century. The current law is common-law-based, with principles and definitions ascertainable only from textbooks and court decisions; governed by the vague and emotive concept of “wickedness”; and the subject of criticism from some commentators as being unclear, old-fashioned, and gendered. In response to those criticisms, the Scottish Law Commission has carried out research and has provided a Report on the Mental Element in Homicide, together with a draft Homicide (Scotland) Bill. The recommendations in the Report aim to clarify, modernise, and simplify Scots homicide law, and to make that law clear and accessible to all.”
The Homicide team would like to thank everyone who contributed to the project, including those who responded to our Discussion Paper and our Advisory Group members.

