Republic v Manyeso
The bottom line
#Supreme Court reinstates life sentence for child defiler, ruling Court of Appeal overstepped its powers.
What this practically means
#The Supreme Court has reinstated a life sentence for a man convicted of defiling a 4½-year-old girl. The Court of Appeal had reduced the sentence to 40 years, but the Supreme Court said the lower court went too far. The Court of Appeal wrongly decided a constitutional issue that was never raised in the trial court or High Court. It also misapplied a previous Supreme Court ruling on mandatory sentences. The Supreme Court stressed that only Parliament, not judges, can change what a life sentence means.
Executive summary
#Key legal issues
#Whether the Court of Appeal acted ultra vires by assuming original jurisdiction on a constitutional issue not raised at the High Court.
The Court of Appeal acted ultra vires because the constitutionality of life imprisonment was not raised at the trial court or High Court, and the Court of Appeal cannot determine such an issue for the first time on appeal.
The Supreme Court found that the issue of the constitutionality of life imprisonment under the Sexual Offences Act was neither canvassed before the trial court nor the High Court. The Court of Appeal, by addressing it as a fresh constitutional question, assumed original jurisdiction. The court relied on section 361(1) of the Criminal Procedure Code, which bars the Court of Appeal from considering the severity of sentence as a matter of fact, and on its own precedent in Republic v Mwangi and Gitonga v Republic, which held that the Court of Appeal cannot entertain issues not raised in the lower courts. The court also noted that the High Court has original jurisdiction under Article 165(3)(b) to determine constitutional questions, and the proper channel is to file a constitutional petition there, not to raise it for the first time on appeal.
Whether the Court of Appeal violated the principle of stare decisis by misapplying the Muruatetu decision.
The Court of Appeal violated stare decisis by extending the Muruatetu ratio to invalidate life imprisonment under the Sexual Offences Act, contrary to the clear directions of the Supreme Court that Muruatetu only applies to the mandatory death sentence for murder.
The Supreme Court reiterated that its Muruatetu directions explicitly stated that the decision did not invalidate mandatory or minimum sentences in the Penal Code, the Sexual Offences Act, or any other statute. The Court of Appeal, however, held that the reasoning in Muruatetu equally applies to mandatory indeterminate life sentences, which directly contradicted the Supreme Court's binding directions. The Supreme Court emphasized that under Article 163(7), all courts are bound by its decisions, and failure to adhere to precedent disrupts uniformity, consistency, and predictability. The Court of Appeal's misapplication created confusion and uncertainty in the law.
Whether the Court of Appeal erred in law by substituting life imprisonment with a 40-year sentence, thereby usurping legislative powers.
The Court of Appeal erred by substituting the sentence, as defining what constitutes a life sentence is a legislative function, not a judicial one, and the court's action violated the doctrine of separation of powers.
The Supreme Court held that Article 94 of the Constitution vests legislative authority in Parliament. While courts have the power to interpret the constitutionality of statutes, they cannot amend or rectify them. The Muruatetu decision itself recommended that the Attorney General and Parliament develop legislation on what constitutes a life sentence, acknowledging that it is not for the court to define it. By substituting the life sentence with a determinate 40-year term, the Court of Appeal effectively amended section 8(2) of the Sexual Offences Act, usurping the legislative function. The court cited its own practice of making recommendations for legislative intervention rather than prescribing remedies itself.
Legal principles established
#- The Court of Appeal cannot decide a constitutional issue for the first time on appeal if it was not raised in the lower courts.
- The Supreme Court's Muruatetu decision does not invalidate mandatory or minimum sentences in the Sexual Offences Act or other statutes.
- Courts cannot substitute a life sentence with a fixed term because defining sentences is a legislative, not judicial, function.
- Lower courts must follow Supreme Court precedent; misapplying it violates the principle of stare decisis.
- The High Court has original jurisdiction to hear constitutional petitions; the Court of Appeal cannot assume that role.
Court orders
#- 1.The petition of appeal is allowed.
- 2.The life imprisonment sentence imposed by the trial court and affirmed by the High Court is hereby reinstated.
- 3.The respondent, Julius Kitsao Munyeso should therefore complete the life imprisonment sentence imposed by the trial court.
- 4.Parties shall bear their own costs.
- 5.We hereby direct that the sum of Kshs 6,000/= deposited as security for costs upon lodging of this appeal, be refunded to the appellant.
- On appeal from
- Court of Appeal at Malindi
- Criminal Appeal No 12 of 2021
- Jurisdiction invoked
- Article 163(4)(a) of the Constitution
Key timeline
#Practical implications
#Limit appeals to issues raised below
When appealing a criminal sentence, do not raise new constitutional challenges for the first time at the Court of Appeal. The Supreme Court has made clear this is ultra vires. If you want to challenge the constitutionality of a sentence, file a constitutional petition at the High Court under Article 165(3)(b). Also, avoid relying on Muruatetu to attack mandatory sentences under the Sexual Offences Act; this judgment confirms that argument is dead.
No direct impact on business law
This case deals specifically with criminal sentencing under the Sexual Offences Act and does not create new obligations for businesses. However, it reinforces the principle that courts cannot rewrite statutes. If your business relies on a regulatory framework with fixed penalties, note that only Parliament can change those penalties. Courts will not step in to reduce them on constitutional grounds unless the challenge is properly raised at the High Court first.
Life sentence remains for child defilement
If you are convicted of defiling a child under 11 years old, you face a mandatory life sentence. The Court of Appeal cannot reduce that sentence to a fixed number of years unless Parliament changes the law. The Supreme Court has now reinstated life imprisonment for such cases. If you believe a sentence is unconstitutional, you must file a constitutional petition at the High Court, not raise it for the first time on appeal.
Frequently asked questions
#Can the Court of Appeal reduce a life sentence in Kenya?+
No, not without a proper constitutional challenge first raised at the High Court. The Supreme Court ruled that the Court of Appeal cannot decide the constitutionality of a life sentence for the first time on appeal. Only Parliament can change what a life sentence means.
Does the Muruatetu case apply to life sentences in Kenya?+
No. The Supreme Court clarified that its Muruatetu decision only applies to the mandatory death sentence for murder. It does not invalidate mandatory or minimum sentences in the Sexual Offences Act or any other law. Life imprisonment for child defilement remains valid.
What is the sentence for defiling a child under 11 in Kenya?+
Under section 8(2) of the Sexual Offences Act, the sentence is life imprisonment. The Supreme Court has now confirmed this is constitutional and cannot be reduced by a court to a fixed term like 40 years. Only Parliament can change the law.
Can I challenge a life sentence as unconstitutional in Kenya?+
Yes, but you must file a constitutional petition at the High Court under Article 165(3)(b). You cannot raise the issue for the first time at the Court of Appeal. The Supreme Court has made clear that the Court of Appeal has no original jurisdiction to hear such challenges.
Later judgments citing this (25)
#Judgments in the corpus that rely on this one. Where the Court said how it treated the authority, that is shown.
- Gordon Amos Onunga Oliech v Republic[2026] KECA 1718 (KLR)25 Sept 2026followed
- Muchiti v Republic[2026] KECA 1841 (KLR)25 Sept 2026followed
- JK v Republic[2026] KECA 1861 (KLR)25 Sept 2026
- Dennis Musungu Nyambane v Republic[2026] KECA 1882 (KLR)25 Sept 2026followed
- SMN v Republic[2026] KECA 1939 (KLR)25 Sept 2026followed
- Abduwahab v Republic (Criminal Appeal E140 of 2023) [2026] KECA 1644 (KLR)[2026] KECA 1644 (KLR)31 Jul 2026followed
- Kazungu v Republic (Criminal Appeal E013 of 2024) [2026] KECA 1502 (KLR)[2026] KECA 1502 (KLR)24 Jul 2026followed
- Ngura v Republic (Criminal Appeal E076 of 2026) [2026] KECA 1496 (KLR)[2026] KECA 1496 (KLR)24 Jul 2026applied
- Muli v Republic (Criminal Appeal E038 of 2024) [2026] KECA 1370 (KLR)[2026] KECA 1370 (KLR)10 Jul 2026followed
- Omuse v Republic (Criminal Appeal E165 of 2022) [2026] KECA 1366 (KLR)[2026] KECA 1366 (KLR)10 Jul 2026applied
- Odhiambo v Republic (Criminal Appeal E085 of 2023) [2026] KECA 1435 (KLR)[2026] KECA 1435 (KLR)10 Jul 2026
- Odhiambo v Republic (Criminal Appeal E150 of 2022) [2026] KECA 1204 (KLR)[2026] KECA 1204 (KLR)26 Jun 2026followed
- Ndege v Republic (Criminal Appeal 89 of 2019) [2026] KECA 1191 (KLR)[2026] KECA 1191 (KLR)26 Jun 2026followed
- Jno v Republic[2026] KECA 1192 (KLR)26 Jun 2026followed
- JBK v Republic (Criminal Appeal E139 of 2022) [2026] KECA 1202 (KLR)[2026] KECA 1202 (KLR)26 Jun 2026followed
- Arap Tele v Republic (Criminal Appeal 8 of 2019) [2026] KECA 1145 (KLR)[2026] KECA 1145 (KLR)12 Jun 2026followed
- Kinuthia v Republic (Criminal Appeal 40 of 2019) [2026] KECA 1092 (KLR)[2026] KECA 1092 (KLR)5 Jun 2026followed
- Njuguna v Republic (Criminal Appeal 67 of 2018) [2026] KECA 1088 (KLR)[2026] KECA 1088 (KLR)29 May 2026followed
- DGN v Republic (Criminal Appeal 85 of 2019) [2026] KECA 1063 (KLR)[2026] KECA 1063 (KLR)29 May 2026followed
- JNM v Republic (Criminal Appeal 83 of 2018) [2026] KECA 1059 (KLR)[2026] KECA 1059 (KLR)29 May 2026followed
- Alex alias Mzee Mkubwa v Republic (Criminal Appeal 98 of 2018) [2026] KECA 939 (KLR)[2026] KECA 939 (KLR)15 May 2026followed
- Mwachambi (Deceased) Suing Through Administrators Hamisi Mashobo Nyaki) & another v Pijay Investmens Limited & 4 others (Environment and Land Case 17 of 2021) [2026] KEELC 3508 (KLR)[2026] KEELC 3508 (KLR)13 May 2026
- Mwachambi (Deceased) Suing Through Administrators Hamisi Mashobo Nyaki) & another v Pijay Investmens Limited & 4 others (Environment and Land Case 17 of 2021) [2026] KEELC 3508 (KLR)[2026] KEELC 3508 (KLR)13 May 2026
- Kiptoo v Republic (Criminal Appeal E188 of 2022) [2026] KECA 796 (KLR)[2026] KECA 796 (KLR)24 Apr 2026followed
- Asiago v Republic (Criminal Appeal 140 of 2020) [2026] KECA 773 (KLR)[2026] KECA 773 (KLR)24 Apr 2026followed
Cite this brief
#Cite this brief
Caselaw, "Republic v Manyeso", Case Analysis (2025). Petition E013 of 2024. Source: https://new.kenyalaw.orghttps://new.kenyalaw.org/akn/ke/judgment/kesc/2025/16/eng@2025-04-11
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.