Mohamed Abdi Mahamud v Ahmed Abdullahi Mohamad & 3 others
The bottom line
#Supreme Court dismisses bid to re-open election evidence, citing strict time limits.
What this practically means
#The Supreme Court of Kenya dismissed an application to have additional evidence taken orally before the trial court in an election petition appeal. The Court ruled that once an Election Court decides a petition, it becomes functus officio—meaning it has no further authority—due to strict constitutional and statutory deadlines. Therefore, the rule allowing trial courts to take additional evidence does not apply to election disputes. The Court also refused cross-examination of affidavit deponents, stating all necessary material was already on record.
Executive summary
#Questions the Court framed
#The issues the Court set itself to decide, in its own words.
- 1.Whether this Court should direct the trial Court to take the additional evidence viva voce and by affidavit in accordance with Rule 18 (4) and (5) of the Supreme Court Rules, 2012
- 2.Whether the Applicants should be allowed to cross-examine all the deponent(s) of the affidavit(s) to be filed by the Petitioner bearing additional evidence
Key legal issues
#Whether the Supreme Court can direct the trial Election Court to take additional evidence viva voce under Rule 18(5) of the Supreme Court Rules, 2012.
The Supreme Court cannot direct the trial Election Court to take additional evidence because the trial court becomes functus officio after determining the election petition, and Rule 18(5) does not apply to election disputes due to constitutional and statutory time constraints.
The Court reasoned that election petitions are subject to strict time limits under Article 105(2) of the Constitution and Section 75(2) of the Elections Act. Once the designated Election Court hears and determines the dispute, it becomes functus officio. Therefore, Rule 18(5), which contemplates the trial court taking additional evidence and certifying it to the appellate court, cannot apply to election petitions that begin and end in the High Court and are appealed to the Supreme Court. The Court distinguished regular appeals from election petitions in this regard.
Whether the Applicants should be allowed to cross-examine deponents of affidavits filed as additional evidence.
The Court disallowed cross-examination, holding that there was no need for it as all necessary material was already on record, and allowing it would unreasonably extend the principle that additional evidence is granted sparingly.
The Court noted that it had already directed that additional evidence be by way of affidavits and responses by affidavit. It found that no party would be prejudiced because all necessary material to hear and determine the appeal was already on record. The Court emphasized that the grant of an order to adduce additional evidence is not routine and is done sparingly with abundant caution, and allowing cross-examination would stretch that holding to unreasonable levels.
Whether the Applicants' motion was an attempt to review the Court's earlier ruling of 28th September 2018, and if so, whether it met the conditions for review.
The motion was an attempt to review the earlier ruling, and the Applicants failed to meet the exceptional circumstances required for review as set out in Fredrick Otieno Outa v Jared Odoyo Okello & 3 Others.
The Court found that the Applicants were essentially asking the Court to vary its earlier order that additional evidence be by way of affidavit. The Court applied the test from Outa, which limits review to exceptional circumstances such as fraud, nullity, mistaken belief of consent, or reliance on a repealed law. The Applicants did not demonstrate any of these circumstances. The Court also cited Robert Tom Martins Kibisu v Republic, where a similar attempt to review was dismissed for failing to meet the Outa criteria.
Legal principles established
#- Election Courts become functus officio after determining a petition, barring them from taking additional evidence under Rule 18(5) of the Supreme Court Rules.
- Strict time limits in Article 105(2) of the Constitution and Section 75(2) of the Elections Act prevent applying Rule 18(5) to election appeals.
- Cross-examination of deponents in additional evidence is not automatic; it is disallowed if all necessary material is already on record.
- Review of a Supreme Court ruling requires exceptional circumstances like fraud, nullity, or reliance on a repealed law, as per Fredrick Otieno Outa v Jared Odoyo Okello.
- Additional evidence in election appeals is granted sparingly and cautiously, not as a routine procedure.
- An application seeking to vary a prior ruling without meeting the Outa criteria will be dismissed as an improper review attempt.
Court orders
#- 1.The Application by the Applicants that the additional evidence be taken viva voce and by affidavit expeditiously before the trial Court is hereby dismissed.
- 2.The Application by the Applicants to cross-examine all the deponent (s) of the affidavit (s) bearing additional evidence is hereby disallowed.
- 3.Costs shall abide the determination of the appeal.
The bench
#One judgment of the whole court — no separate or dissenting opinions.
- On appeal from
- High Court of Kenya (Election Court)
- Jurisdiction invoked
- Articles 22, 25, 27, 48, 50 and 159 of the Constitution 2010, Rules 18 and 26 of the Supreme Court Rules, 2012
Relief refused
#Order that additional evidence be taken viva voce and by affidavit before the trial Court
The trial Court is functus officio after determining the election dispute, and Rule 18(5) cannot apply to election petitions due to constitutional and statutory time strictures.
Order to cross-examine all deponents of affidavits bearing additional evidence
The Court found no need for cross-examination as all necessary material was already on record, and allowing it would unreasonably stretch the holding that additional evidence is allowed sparingly.
Costs
Costs shall abide the determination of the appeal.
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.
Once the designated Election Courts have heard and determined the election disputes, they become functus officio . As such, Rule 18 (5) of the Supreme Court Rules 2012, cannot possibly apply to election disputes that begin at the High Court and end up in this Court because of the strictures of time embedded in the Constitution and statute
we are not convinced in the circumstances that there is any need to allow cross-examination by or of any party in this Court and in any event, no party will be prejudiced by such an action as all necessary material to enable us hear and determine the appeal is already on the record
the Applicants in the instant matter have not met the conditions precedent set out in Outa to persuade us that we ought to review or vary our Ruling of 28th September, 2018
The Application by the Applicants that the additional evidence be taken viva voce and by affidavit expeditiously before the trial Court is hereby dismissed.
The Application by the Applicants to cross-examine all the deponent (s) of the affidavit (s) bearing additional evidence is hereby disallowed.
Key timeline
#Practical implications
#Limit election evidence strategies
When handling election appeals to the Supreme Court, do not rely on Rule 18(5) to request trial court involvement for additional evidence. The trial Election Court is functus officio after its decision. Instead, prepare all additional evidence by affidavit at the Supreme Court stage. Also, avoid seeking cross-examination unless you can show prejudice from incomplete records, as the Court disallows it when material is sufficient.
Understand election dispute finality
If your business is involved in an election petition as a party or witness, note that once the High Court (Election Court) rules, it cannot revisit the case for further evidence. The Supreme Court handles appeals with strict deadlines. This means you must present all key evidence early. Any attempt to re-open evidence after the trial court's decision is unlikely to succeed, saving you time and legal costs.
Know your rights in election cases
If you are a party in an election petition, you cannot ask the trial court to take new evidence after it has made its decision. The Supreme Court will only accept additional evidence by written affidavits, not oral testimony. Also, you generally cannot cross-examine those who swear these affidavits unless you prove the court lacks enough material. This ruling protects the speed of election dispute resolution.
Frequently asked questions
#Can the trial court take additional evidence in a Kenyan election petition appeal?+
No. The Supreme Court ruled that once the Election Court decides a petition, it becomes functus officio (no further authority). Rule 18(5) of the Supreme Court Rules does not apply to election disputes due to strict constitutional and statutory time limits. Additional evidence must be by affidavit at the Supreme Court level.
What is functus officio in Kenyan election law?+
Functus officio means a court or official has completed its task and has no further legal authority. In election petitions, the trial Election Court becomes functus officio after determining the dispute. This prevents it from taking additional evidence later, ensuring election cases are resolved quickly as required by Kenya's Constitution and Elections Act.
Can I cross-examine affidavit deponents in a Kenyan Supreme Court election appeal?+
Generally, no. The Supreme Court disallowed cross-examination of deponents in additional evidence affidavits, stating all necessary material was already on record. The Court emphasized that additional evidence is granted sparingly, and allowing cross-examination would unreasonably extend that principle. You must show prejudice to succeed.
How can I review a Supreme Court ruling in Kenya?+
Review is limited to exceptional circumstances as set in Fredrick Otieno Outa v Jared Odoyo Okello. You must prove the ruling was obtained by fraud or deceit, is a nullity, the court was misled under mistaken belief of consent, or it relied on a repealed or concealed law. Simply disagreeing with the ruling is not enough.
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.
- Odero (Suing on his Behalf and as the Legal Administrator of the Estate of Joshua Odero Owiti (Deceased)) v Otieno (Sued on her Own Behalf and asthe Legal Administrator of the Estate of Reuben Otieno Okombo alias Otieno Kombo) (Enviromental and Land Originating Summons 004 of 2020) [2026] KEELC 5209 (KLR)[2026] KEELC 5209 (KLR)15 Jul 2026applied
- Mudachi v Muthama & another (Environment and Land Appeal E199 of 2025) [2026] KEELC 2501 (KLR)[2026] KEELC 2501 (KLR)30 Apr 2026applied
- Stocker v Mutie & another; New Connections Suppliers Limited (Intended Interested Party) (Civil Suit E046 of 2022) [2026] KEELC 2523 (KLR)[2026] KEELC 2523 (KLR)22 Apr 2026applied
- Mbaazi Avenue Residents’ Association & another v Metricon Home Nairobi Company Limited & 2 others[2026] KESC 30 (KLR)31 Mar 2026followed
- Criticos v Attorney General & 7 others (Civil Application 276 of 2020) [2026] KECA 249 (KLR)[2026] KECA 249 (KLR)13 Feb 2026applied
- MWN (Suing as the Guardian Ad Litem of GWN, a Person Suffering from Mental Infirmity) v RWN alias RWM (Civil Appeal (Application) E138 of 2022) [2025] KECA 1985 (KLR)[2025] KECA 1985 (KLR)21 Nov 2025
- Benson (Suing on Behalf of the Estate of Benson Mbuuri alias Benson M’buuri M’ncebere alias Kathaka Benson M’mburi) v M’Mukangu & 3 others (Environment and Land Appeal E006 of 2024) [2025] KEELC 8022 (KLR)[2025] KEELC 8022 (KLR)18 Nov 2025applied
- Kobuthi & another v Marete (Environment and Land Appeal E007 of 2023) [2025] KEELC 7958 (KLR)[2025] KEELC 7958 (KLR)12 Nov 2025
- Mainkam Limited & another v Multichoice Kenya Limited (Civil Appeal (Application) 49 of 2020) [2025] KECA 1596 (KLR)[2025] KECA 1596 (KLR)3 Oct 2025applied
- Karauki & 2 others v Thuranira (Environment and Land Appeal E093 of 2021) [2025] KEELC 5633 (KLR)[2025] KEELC 5633 (KLR)28 Jul 2025applied
- Njaggah v Board of Directors of Water Services Regulatory Authority & 2 others (Civil Appeal E108 of 2024) [2025] KECA 1258 (KLR)[2025] KECA 1258 (KLR)11 Jul 2025
- Muthuri & another t/a Karibu Drapers v Kimathi & 3 others (Environment and Land Appeal E084 of 2022) [2025] KEELC 5088 (KLR)[2025] KEELC 5088 (KLR)9 Jul 2025applied
- Wandaka & 2 others v Elizabeth Wambui Mwangi (Civil Appeal 36 of 2019) [2024] KECA 1315 (KLR)[2024] KECA 1315 (KLR)27 Sept 2024applied
- Nganga & another v Ndoge; Njoroge & 3 others (Interested Parties) (Environment and Land Case 45 of 2024) (Environment and Land) [2024] KEELC 5082 (KLR)[2024] KEELC 5082 (KLR)4 Jul 2024
- Singh t/a Trilok Construction v Sucham Investment Limited (Civil Appeal E070 of 2021) [2024] KECA 568 (KLR)[2024] KECA 568 (KLR)24 May 2024applied
- Kamaru v Gikuhi & another (Environment and Land Appeal E070 of 2022) [2024] KEELC 4225 (KLR)[2024] KEELC 4225 (KLR)9 May 2024applied
- Dari Limited & 5 others v East African Development Bank[2024] KESC 18 (KLR)26 Apr 2024followed
- Oganga v Were (Environment and Land Appeal E010 of 2023) [2024] KEELC 3400 (KLR)[2024] KEELC 3400 (KLR)25 Apr 2024
- Bunde v Osoro & 2 others (Environment and Land Appeal E017 of 2022) [2024] KEELC 1483 (KLR)[2024] KEELC 1483 (KLR)18 Mar 2024
- Stephen (Suing as the administrator and representative of the estate of Oure Omolo Ogalo) v Omuko & 2 others (All sued as representatives of the Estate of Oluoch Ojuko and in their respective personal capacities) (Environment and Land Appeal E006 of 2023) [2024] KEELC 1054 (KLR)[2024] KEELC 1054 (KLR)29 Feb 2024applied
- Garama v Karisa & 3 others[2024] KESC 1 (KLR)16 Feb 2024applied
- Oseko v Kenya Revenue Authority (Cause 237 of 2020) [2024] KEELRC 262 (KLR)[2024] KEELRC 262 (KLR)9 Feb 2024
- Oombo & another v Onyango (Administratrix of the Estate of John Onyango Amach) (Environment and Land Appeal E027 of 2022) [2024] KEELC 553 (KLR)[2024] KEELC 553 (KLR)6 Feb 2024applied
- Maina & 12 others v The United Democratic Alliance Party & 5 others (Election Petition Appeal (Application) E001 of 2023) [2024] KECA 62 (KLR)[2024] KECA 62 (KLR)2 Feb 2024
- Mayfair Holdings Limited v County Commissioner Kisumu & 3 others; Ethics and Anti-Corruption Commission & another (Interested Parties) (Constitutional Petition 2 of 2019) [2024] KEELC 456 (KLR)[2024] KEELC 456 (KLR)1 Feb 2024
Cite this brief
#Cite this brief
Caselaw, "Mohamed Abdi Mahamud v Ahmed Abdullahi Mohamad & 3 others", Case Analysis (2018). Petition 7 & 9 of 2018 (Consolidated). Source: https://new.kenyalaw.orghttps://new.kenyalaw.org/akn/ke/judgment/kesc/2018/71/eng@2018-11-12
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.