Kamande v Republic
The bottom line
#Kenya's Supreme Court rules battered woman syndrome is not a standalone defence; it must support self-defence, provocation, or temporary insanity.
What this practically means
#The Supreme Court of Kenya dismissed Jacqueline Wanjiku Mwangi's appeal. She had argued that her history of abuse should excuse her murder conviction. The court clarified that the battered woman syndrome is not a separate defence in Kenya. It can only be used together with existing defences like self-defence, provocation, or temporary insanity. The prosecution must still prove guilt beyond reasonable doubt. The defence must raise the syndrome early and provide evidence to support it.
Executive summary
#Questions the Court framed
#The issues the Court set itself to decide, in its own words.
- 1.the applicability, standard of proof, burden of proof and guiding principles for the doctrine of the battered woman syndrome as a defence.
- 2.the applicable standard and burden of proof in a self-defence plea and the consequences thereon once the accused provides prima facie circumstantial evidence of their plea.
- 3.The applicable reliefs.
Key legal issues
#Whether the battered woman syndrome is applicable as a stand-alone defence in Kenya.
The battered woman syndrome has not attained the status of a stand-alone defence in Kenya. It must be raised in aid or as an extension of one of the existing legal stand-alone defences: self-defence, provocation or temporary insanity. The courts cannot singularly elevate it to a stand-alone defence as that would usurp Parliament's legislative mandate.
The court reviewed comparative jurisprudence from the UK, Canada, and the US, noting that in those jurisdictions the syndrome is not a stand-alone defence but supports existing defences. The court found that in Kenya, the syndrome has so far primarily been used as a mitigating factor, not a defence. The court held that creating a new stand-alone defence is a legislative function, not a judicial one. The court emphasized a case-by-case evaluation is needed.
What is the burden and standard of proof when the battered woman syndrome is raised in a criminal trial?
The legal burden of proof never shifts from the prosecution. When the defence invokes the battered woman syndrome, it does not need to disprove the crime but raise a reasonable doubt. The burden rests on the defence to establish the existence of the syndrome and its application to the offence. The evidential burden may shift, but the legal burden remains on the prosecution.
The court relied on the principle from Woolmington v DPP that the prosecution must prove guilt beyond reasonable doubt. It distinguished between legal burden (constant on prosecution) and evidential burden (shifting). The court held that the defence must provide evidence, such as expert testimony, to raise the syndrome, but the ultimate burden to disprove the defence beyond reasonable doubt remains on the prosecution.
Whether the appellant's appeal was properly before the Supreme Court given that the battered woman syndrome was not raised in the courts below.
The appeal was not properly before the court because the issue of battered woman syndrome was raised for the first time at the certification stage before the Court of Appeal and was not pleaded or addressed by the trial court or the Court of Appeal. The Supreme Court's appellate jurisdiction requires that the matter be ripe for consideration, having been ventilated through the hierarchy of courts.
The court found that the appellant's own evidence described a 'normal boyfriend/girlfriend relationship' and not a toxic one. The trial court had considered self-defence and provocation but rejected them. The syndrome was never raised at trial or in the first appeal. The court cited Malcolm Bell v Daniel Toroitich Arap Moi and the Hermanus case principles, holding that the issue must arise from the decision of the court below, not from a discussion during the hearing. The court concluded the matter was not ripe for final determination at the apex court.
Legal principles established
#- Battered woman syndrome is not a standalone defence in Kenya; it must be raised alongside self-defence, provocation, or temporary insanity.
- The syndrome must be raised at the earliest opportunity, just like any other defence.
- The legal burden of proof never shifts from the prosecution; the defence only needs to raise a reasonable doubt.
- The defence bears the burden to establish the existence of the syndrome and how it applies to the specific case.
- Courts cannot create new defences; that is Parliament's role.
Court orders
#- 1.The petition of appeal dated 6th November 2023 and filed on 7th November 2023 be and is hereby dismissed.
- 2.There shall be no order as to costs.
- 3.Security for costs in the sum of Kshs 6,000/- deposited by the appellant be refunded.
The bench
#One judgment of the whole court — no separate or dissenting opinions.
Wrote the judgment
- On appeal from
- Court of Appeal of Kenya
- Criminal Appeal No. 102 of 2018
- Jurisdiction invoked
- Article 163(4)(b) of the Constitution; section 15(A) of the Supreme Court Act 2011; rules 3(5), 38 and 39 of the Supreme Court Rules 2020
Relief refused
#A declaration that the doctrine of the battered woman/man syndrome is applicable as a defence to the defence of murder
The issue was not properly raised before the courts below and the appeal was dismissed.
A declaration that the applicable test for the battered woman/man syndrome is contextual and based on the test of cumulative loss of self-control
The issue was not properly raised before the courts below and the appeal was dismissed.
A declaration that where an accused pleads self-defence under the doctrine of the battered woman syndrome, the burden of proof shifts to the prosecution to disprove every element of the defence beyond reasonable doubt
The issue was not properly raised before the courts below and the appeal was dismissed.
A declaration that the prosecution's failure to conclusively repudiate each and every element of the defence of self-defence entitles an accused person to conviction on the lesser charge of manslaughter
The issue was not properly raised before the courts below and the appeal was dismissed.
The Judgment of the Court of Appeal affirming the appellant's conviction on the charge of murder be set aside and substituted with a conviction on the charge of manslaughter and the appellant be sentenced to time served
The appeal was dismissed.
That the sentencing of the appellant to death by the trial court as affirmed by the Court of Appeal be set aside in favour of a more lenient sentence taking into account the doctrine of the battered woman syndrome as a mitigating factor
The appeal was dismissed; also, severity of sentence is a matter of fact not appealable in a second appeal.
Costs
There shall be no order as to costs.
Quotable passages
#Verbatim from the judgment, each located to the page it appears on in the official PDF — so these can be cited and checked directly.
the battered woman syndrome has not in our view attained the status of a stand-alone defence and it has to be raised in aid or as an extension of one of the existing legal stand- alone defences: self-defense, provocation or temporary insanity.
Undoubtedly, the legal burden of proof in criminal cases does not and cannot shift from the prosecution.
the burden rests on the defence to not only establish the existence of the battered woman syndrome but also the extent of such application to the offence in which the syndrome is to be relied upon.
the application of the battered woman syndrome must be carefully tailored to individual cases, rather than applied universally as a blanket and stand-alone defence.
where a party seeks to rely upon the battered woman syndrome in the course of trial, the same should be raised at the earliest in a similar manner that any other defence would have been raised.
The petition of appeal dated 6th November 2023 and filed on 7th November 2023 be and is hereby dismissed.
There shall be no order as to costs.
Security for costs in the sum of Kshs 6,000/- deposited by the appellant be refunded.
Key timeline
#Practical implications
#Raise battered woman syndrome early
When defending a client with a history of domestic violence, raise the battered woman syndrome at the earliest opportunity in the trial, not for the first time on appeal. Frame it as supporting an existing defence like self-defence or provocation. You must present expert testimony to establish the syndrome's existence and its link to the offence. The prosecution still bears the ultimate burden of proof, but your client needs to raise a reasonable doubt.
Update employee support programmes
If your company offers legal assistance or counselling for employees experiencing domestic violence, ensure your advisors understand that the battered woman syndrome is not a free-standing defence in Kenya. Employees who have been abused and later face criminal charges cannot rely solely on that syndrome. Your HR and legal teams should focus on traditional defences and early legal intervention to preserve all available options.
Know your legal options
If you are in an abusive relationship and fear for your life, understand that the law does not automatically excuse killing an abuser just because you suffer from battered woman syndrome. You must prove that you acted in self-defence, were provoked, or were temporarily insane. Seek legal advice early and document all incidents of abuse. Raising the syndrome without supporting evidence or at the wrong time may not help your case.
Frequently asked questions
#Is battered woman syndrome a defence in Kenya?+
No, the Supreme Court ruled in 2025 that battered woman syndrome is not a standalone defence in Kenya. It can only be used to support existing defences like self-defence, provocation, or temporary insanity. The defence must be raised early in the trial with proper evidence.
What is the burden of proof for battered woman syndrome in Kenya?+
The prosecution always has the legal burden to prove guilt beyond reasonable doubt. When a defendant raises battered woman syndrome, they only need to provide enough evidence to create a reasonable doubt. The defence must prove the syndrome exists and applies to the specific case, but the ultimate burden stays on the state.
Can I use battered woman syndrome as a defence in a murder case in Kenya?+
You cannot use it alone. You must link it to a recognised defence such as self-defence, provocation, or temporary insanity. The Supreme Court stressed that the syndrome is not a separate defence and must be raised at the earliest stage of your trial. Without connecting it to an existing defence, it will not succeed.
How do I raise battered woman syndrome in a Kenyan court?+
Raise it at the earliest opportunity, just like any other defence. You should present expert testimony, such as a psychologist, to establish the syndrome and show how it affected your actions at the time of the offence. The court will then evaluate whether it supports a recognised defence like self-defence or provocation.
Later judgments citing this (1)
#Judgments in the corpus that rely on this one. Where the Court said how it treated the authority, that is shown.
- Wanyonyi v Republic (Criminal Appeal 11 of 2020) [2025] KECA 1642 (KLR)[2025] KECA 1642 (KLR)3 Oct 2025applied
Cite this brief
#Cite this brief
Caselaw, "Kamande v Republic", Case Analysis (2025). Petition E032 of 2023. Source: https://new.kenyalaw.orghttps://new.kenyalaw.org/akn/ke/judgment/kesc/2025/18/eng@2025-04-11
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.