Philip Momanyi Omwenga v Republic
The bottom line
#Kenya's Court of Appeal confirmed that the 20-year minimum sentence for defilement is constitutional and courts cannot reduce it.
What this practically means
#Executive summary
#Questions the Court framed
#The issues the Court set itself to decide, in its own words.
- 1.Whether the mandatory minimum sentence of 20 years' imprisonment under section 8(3) of the Sexual Offences Act is constitutional
- 2.Whether the sentence imposed on the appellant was harsh and excessive
- 3.Whether the appellant is entitled to credit under section 333(2) of the Criminal Procedure Code for time spent in custody
Key legal issues
#Constitutionality of the minimum sentence under section 8(3) of the Sexual Offences Act
The 20-year minimum sentence is constitutional; the Supreme Court's Muruatetu jurisprudence on mandatory sentences does not extend to the Sexual Offences Act.
The court relied on the Supreme Court's decision in Republic v Mwangi (ISLA), which held that minimum sentences under the Sexual Offences Act are constitutional and binding, and that Muruatetu applies strictly to murder under section 204 of the Penal Code. This Court in Charles & Another v Republic ceded to that binding pronouncement. Minimum sentences set a floor, not a ceiling, and do not strip judicial discretion in the manner of mandatory sentences.
Entitlement to credit for time spent in custody under section 333(2) CPC
The appellant was not entitled to section 333(2) credit because he was released on bail throughout his trial.
The court traced the record and found the appellant was granted bail of Kshs.100,000/= with a like surety at plea on 18th March 2019 and remained on bail until conviction and sentence. Section 333(2) obligates courts to account for time spent in remand custody; since the appellant was never in pre-trial custody, there was nothing to deduct or backdate.
Legal principles established
#- Once the complainant's age falls within the statutory bracket, the trial court has no discretion to go below the prescribed minimum sentence; its only role is compliance with section 333(2) CPC on pre-trial custody.
- Minimum sentences under the Sexual Offences Act are constitutional and binding and must be imposed unless declared unconstitutional.
Court orders
#- 1.The appeal is dismissed in its entirety
- 2.The sentence of 20 years' imprisonment imposed by the trial court and affirmed by the first appellate court stands
The bench
#One judgment of the whole court — no separate or dissenting opinions.
Wrote the judgment
Wrote the judgment
Wrote the judgment
- On appeal from
- High Court of Kenya at Kisii
- HCCRA No. E014 of 2022
- Jurisdiction invoked
- Second appellate criminal jurisdiction of the Court of Appeal (appeal against High Court judgment in HCCRA No. E014 of 2022); no specific constitutional/statutory provision cited in the judgment
Relief refused
#Setting aside of the sentence and immediate release of the appellant
The minimum sentence under section 8(3) of the Sexual Offences Act is constitutional and binding; the appellant was on bail throughout trial so no section 333(2) credit applies
Costs
No costs order made in the judgment.
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.
It follows therefore, that the appeal is wholly devoid of merit, collapses and is accordingly dismissed in its entirety.
once the complainant’s age is established within the statutory bracket, the trial court has no discretion to reduce or alter the prescribed minimum sentence
minimum sentences however set the floor rather than the ceiling when it comes to sentences
we are satisfied that the sentence imposed on the appellant was lawful, constitutional, and consistent with statutory principles governing sentencing jurisdiction
Issues in the judgment
#Same authority cited with two different years
Key timeline
#Practical implications
#Frequently asked questions
#Cite this brief
#Cite this brief
Caselaw, "Philip Momanyi Omwenga v Republic", Case Analysis (2026). Criminal Appeal No. E037 of 2024. Source: https://new.kenyalaw.org/akn/ke/judgment/keca/2026/1880/eng@2026-09-25
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.