Tanui v Republic (Criminal Appeal E021 of 2024) [2026] KECA 1363 (KLR)
The bottom line
#Kenya's Court of Appeal quashed a robbery conviction because a hostile witness and a drunk eyewitness's shaky identification left too much doubt.
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 evidence of PW2 was credible
- 2.whether the appellant was properly identified as the perpetrator
- 3.whether the evidence of PW1, as a single identifying witness could sustain a conviction
Key legal issues
#Credibility of the hostile witness (PW2)
PW2's evidence was wholly unreliable and of no probative value and should not have been considered at all.
PW2 was declared hostile and cross-examined by the prosecution. He gave contradictory accounts - that the complainant was bleeding then not bleeding; that the attackers were unknown persons, then Kapkem, then Leonard Langat alias Kopku and Wesley Kiplangat. Following Batala and Abel Monari Nyanamba, treating a witness as hostile equates to a finding of unreliability, rendering the evidence negligible. The court concluded he was cagey and deliberately untruthful.
Identification by a single identifying witness under unfavourable conditions
The circumstances of identification were not favourable; the complainant's drunkenness, the rainy and muddy night, and material contradictions created doubt as to identity, rendering the conviction unsafe.
PW1 admitted he had been drinking; it was a rainy, muddy night; no medical evidence established his degree of drunkenness. He gave inconsistent figures for the amount stolen (Kshs. 3,750 vs Kshs. 700) and inconsistent weapons. Applying Maitanyi, the evidence of a single identifying witness in difficult conditions must be tested with the greatest care. The court found doubt in the appellant's identity.
Absence of medical evidence and unsafe conviction
The absence of the P3 form/medical evidence left the complainant's claim of injury uncorroborated, contributing to the finding that the conviction was unsafe.
The court noted there was no medical evidence to corroborate that PW1 sustained injuries as alleged; the P3 form was not produced by its maker. Combined with the thin single-witness identification evidence and the complainant's intoxication, the court held this was not a safe conviction, as the evidence relied upon by the prosecution was thin and shaky.
Degree of drunkenness as affecting identification capacity
The state of drunkenness of the identifying witness was a critical issue deserving greater weight, and various degrees of drunkenness may affect the witness's faculties.
Drawing on the South African authority S v Chretien quoting R v Bouke, the court distinguished degrees of drunkenness. No medical evidence was adduced as to the complainant's degree of drunkenness, yet both lower courts simply held that his drunkenness did not affect his ability to identify the culprit. The court held that the state of drunkenness ought to have been given more weight in assessing the complainant's faculties.
Legal principles established
#- A second appellate court concerns itself only with matters of law and may not interfere with findings of fact unless the lower courts considered matters they should not have, failed to consider matters they should have, or were plainly wrong on the evidence.
- The evidence of a witness declared hostile is unreliable and cannot found a conviction; a court cannot convict solely on the evidence of a hostile witness.
- A court must test with the greatest care the evidence of a single identifying witness where conditions favouring correct identification were difficult, and must warn itself before, not after, making its decision.
Court orders
#- 1.The appeal is allowed
- 2.The appellant's conviction is quashed
- 3.The appellant's sentence is set aside
- 4.The appellant shall forthwith be set at liberty unless otherwise lawfully held
The bench
#One judgment of the whole court — no separate or dissenting opinions.
- On appeal from
- High Court of Kenya at Kilgoris
- HCCRA No. E035 of 2023
- Jurisdiction invoked
- Section 361(1)(a) of the Criminal Procedure Code (second appeal on matters of law only)
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.
In view of the foregoing, we find that the conviction given by the trial court and upheld by the first appellate court was unsafe. Accordingly, we find that the appeal has merit. It is allowed. The appellant's conviction is hereby quashed and his sentence set aside.
We order that the appellant shall forthwith be set at liberty unless otherwise lawfully held. It is so ordered.
Under section 361(1) (a) of the Criminal Procedure Code, our jurisdiction does not allow us to consider matters of fact unless it be shown that the two courts below considered matters that should not have been considered or failed to consider matters that they should have considered or that looking at the evidence, they were plainly wrong.
This is not a safe conviction as the evidence relied upon by the prosecution is thin and shaky.
Obviously, no court could find a conviction solely on the evidence of a hostile witness because his unreliability must itself introduce an element of reasonable doubt.
Failure to undertake an inquiry of careful testing is an error of law and such evidence cannot safely support a conviction.
Issues in the judgment
#The judgment states the trial court judgment was dated 25th October 2013, yet the offence was committed on 19th December 2018 and the trial was Criminal Case No. 76 of 2019 - the trial judgment date appears to be an error for a later date.
Internal inconsistency in the evidence as recorded: PW1 is recorded as testifying he was robbed of Kshs. 3,750.00 and later Kshs. 700.00, while the charge particulars and the investigating officer refer to Kshs. 3,700.00.
The judgment recites PW2 as testifying the offence occurred at 10:00 a.m. when the entire case is predicated on a night attack at 10:00 p.m., an apparent typographical inconsistency.
Key timeline
#Practical implications
#Frequently asked questions
#Cite this brief
#Cite this brief
Caselaw, "Tanui v Republic (Criminal Appeal E021 of 2024) [2026] KECA 1363 (KLR)", Case Analysis (2026). Criminal Appeal (not expressly numbered in judgment; appeal from HCCRA No. E035 of 2023, Kilgoris). Source: https://new.kenyalaw.org/akn/ke/judgment/keca/2026/1363/eng@2026-07-10
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.