Samson Gwer & 5 others v Kenya Medical Research Institute & 3 others
The bottom line
#Supreme Court ruled researchers failed to prove discrimination against KEMRI, upholding the Court of Appeal's decision.
What this practically means
#Five Kenyan researchers sued KEMRI, claiming they were paid less and given fewer opportunities than white foreign colleagues. The Supreme Court dismissed their case. The Court explained that the researchers had the initial duty to provide solid evidence of discrimination. They failed to do this. KEMRI had explained that the foreign researchers were employed under different contracts with separate organizations. The Court also rejected claims about ownership of inventions, as the researchers' contracts gave KEMRI rights to work-related discoveries.
Executive summary
#Questions the Court framed
#The issues the Court set itself to decide, in its own words.
- 1.whether discrimination in the course of employment had characterized the operations of the 1st respondent?
- 2.who has the onus of proof in discrimination cases?
- 3.were the petitioners’ rights to intellectual property violated by the 1st respondent?
- 4.what was the effect of the non-determination of a cross-appeal by the Appellate Court?
Key legal issues
#What is the onus of proof in discrimination cases under Article 27 of the Constitution?
The burden of proof lies on the party alleging discrimination to first establish a prima facie case. Only after this threshold is met does the evidential burden shift to the respondent.
The Court relied on sections 108 and 109 of the Evidence Act and its own precedent in Raila Odinga & others v IEBC & others, Petition No 5 of 2013. It held that the petitioners bore the overriding obligation to lay substantial material before the Court in discharge of the evidential burden. The Court found that the petitioners failed to discharge this initial burden, as the trial court had overlooked the respondent's detailed replying affidavits which provided explanations for the alleged differential treatment. The Court emphasized that constitutional rights safeguards require a higher standard of proof than ordinary civil claims.
What constitutes indirect discrimination under Article 27 of the Constitution?
The Court did not define indirect discrimination because the petitioners failed to establish a prima facie case of discrimination, making it unnecessary to reach that question.
The petitioners argued that indirect discrimination is difficult to prove and urged the Court to focus on outcomes and statistics. However, the Court found that the petitioners had not provided sufficient evidence to establish even a prima facie case. The Court noted that the trial court had overlooked the respondent's detailed replying affidavits which explained the employment arrangements, including that foreign researchers were employed under separate contracts with third parties. The Court held that without first establishing a prima facie case, the question of what constitutes indirect discrimination did not arise.
Were the petitioners' intellectual property rights under Article 40 of the Constitution violated?
The petitioners failed to establish that their intellectual property rights were violated, and the claim regarding innovations made outside employment was not pleaded at trial.
The Court considered section 32(1) and (5) of the Industrial Property Act. Section 32(1) provides that inventions made in the course of employment belong to the employer, while section 32(5) provides that inventions made without relation to employment and without use of the employer's resources belong to the employee. The Court found that the petitioners' employment contracts provided that intellectual property arising in performance of duties belonged to the Institute. The claim that the 5th petitioner made innovations while out of employment was not pleaded at trial and could not be introduced at the appellate stage. The Court also found the particulars of the alleged violations were inadequately focused.
What is the effect of the Court of Appeal's failure to determine a cross-appeal?
While the cross-appeal ought to have been determined, there was no need to refer it back as it would not yield a different result given the petitioners' failure to establish their case.
The Court acknowledged that the Court of Appeal should have determined the cross-appeal. However, the Court found that the cross-appeal sought benefits related to unfair termination, but the petitioners had not denied being paid even for periods they did not work. Since the petitioners failed to discharge their evidential burden on the main claim, the cross-appeal necessarily lacked merit. The Court exercised its discretion not to remit the matter back to the Court of Appeal, as doing so would serve no useful purpose.
Legal principles established
#- The party alleging a constitutional violation must first establish a prima facie case before the burden shifts to the respondent.
- The standard of proof in constitutional rights claims is higher than the ordinary civil standard.
- A party cannot introduce a new claim at the appellate stage that was not pleaded before the trial court.
- Inventions made in the course of employment belong to the employer, as per the Industrial Property Act and employment contracts.
- A lower court's failure to determine a cross-appeal does not require remittal if the main claim has already failed.
Court orders
#- 1.The petition of appeal dated 19 March 2019 has no merit, and is hereby disallowed.
- 2.The parties shall bear their own individual costs.
The bench
#One judgment of the whole court — no separate or dissenting opinions.
- On appeal from
- Court of Appeal of Kenya
- Jurisdiction invoked
- Article 163(4)(a) of the Constitution
Relief refused
#Setting aside the Judgment of the Court of Appeal and allowing the petition
The petition of appeal has no merit
Declaration that discrimination under article 27 of the Constitution includes institutional discrimination
The petitioners failed to discharge their initial burden of proof
Declaration that the onus of proving discrimination shifts from the victim to the culprit once a prima facie case is established
The petitioners did not establish a prima facie case
Declaration that the right to intellectual property under article 40 of the Constitution for innovations made when an employee is not in employment belongs to the employee
The claim was not pleaded at trial and the petitioners failed to establish it
Order that the Court of Appeal determine the cross-appeal
No need to refer the cross-appeal back as it would not yield a different result
Costs
The parties shall bear their own individual 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 petition of appeal dated 19 March 2019 has no merit, and is hereby disallowed.
the petitioners, in the instant case, bore the overriding obligation to lay substantial material before the Court, in discharge of the evidential burden establishing their treatment at the hands of 1st respondent as unconstitutional. Only with this threshold transcended, would the burden fall to 1st respondent to prove the contrary.
we would not allow a fresh claim at this ultimate appellate stage
The parties shall bear their own individual costs.
Key timeline
#Practical implications
#Burden of proof in discrimination claims
When alleging discrimination under Article 27, you must first present substantial evidence to establish a prima facie case. The court will not shift the burden to the respondent until this threshold is met. The standard is higher than the ordinary civil balance of probabilities. Ensure your pleadings are comprehensive from the outset.
Structuring employment and IP rights
Ensure your employment contracts explicitly state that intellectual property created during employment belongs to the company. The Court upheld the Industrial Property Act's default position, but clear contracts prevent disputes. Also, document the rationale for different employment terms for different categories of staff to defend against discrimination claims.
Proving workplace discrimination
If you believe you have been discriminated against at work, you must gather concrete evidence to support your claim. The court will not assume discrimination just because of different outcomes. You must show that the employer's explanations for the differences are false or unreasonable. The burden of proof starts with you.
Frequently asked questions
#What is the burden of proof in a discrimination case in Kenya?+
In Kenya, the person alleging discrimination must first provide enough evidence to establish a basic case (prima facie). Only then does the burden shift to the accused party to defend themselves. This standard is higher than in ordinary civil cases.
Can I sue my employer for owning my inventions in Kenya?+
Generally, no. Under the Industrial Property Act and standard employment contracts, inventions made by an employee in the course of their duties belong to the employer. The Supreme Court in the KEMRI case confirmed this principle.
What happened in the KEMRI discrimination case in Kenya?+
Five Kenyan researchers sued KEMRI for racial discrimination. The Supreme Court dismissed their case, ruling they failed to provide enough initial evidence. The Court noted KEMRI had explained that foreign researchers were employed under different contracts with third parties.
Can I introduce a new legal claim during an appeal in Kenya?+
No. The Supreme Court in the KEMRI case ruled that a party cannot introduce a completely new claim at the appellate stage that was not pleaded before the trial court. All claims must be raised and argued from the beginning of the case.
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.
- Mukomaua v M’aciuru & 3 others (Environment and Land Appeal 84 of 2025) [2026] KEELC 4766 (KLR)[2026] KEELC 4766 (KLR)27 Jul 2026followed
- East Africa Wildlife Society & 3 others v Kenya National Highways Authority & 9 others (Environment and Land Petition E001 of 2024) [2026] KEELC 4670 (KLR)[2026] KEELC 4670 (KLR)17 Jul 2026applied
- Muthuri v M’Mbui (Environment and Land Appeal E022 of 2025) [2026] KEELC 4785 (KLR)[2026] KEELC 4785 (KLR)13 Jul 2026applied
- Musanga & 38 others v Cabinet Secretary, Ministry of Land, Housing, and Urban Development & 5 others (Environment and Land Petition E010 of 2025) [2026] KEELC 3853 (KLR)[2026] KEELC 3853 (KLR)24 Jun 2026
- Turkana Indigenous People Action for Development (TIPD) v Turkana County Government & 5 others (Environment and Land Petition E001 of 2025) [2026] KEELC 2971 (KLR)[2026] KEELC 2971 (KLR)15 May 2026applied
- Etaya & another v Murungi (Environment and Land Appeal E083 of 2024) [2026] KEELC 1865 (KLR)[2026] KEELC 1865 (KLR)25 Mar 2026
- Mwangi v Kaurrai & another (Land Case Appeal E010 of 2025) [2026] KEELC 1854 (KLR)[2026] KEELC 1854 (KLR)25 Mar 2026applied
- Berlin Equipment Limited v Mascor Kenya Limited (Civil Appeal E112 of 2023) [2026] KECA 530 (KLR)[2026] KECA 530 (KLR)13 Mar 2026
- Kinda v Aiducation International (K) & another (Civil Appeal E047 of 2022) [2026] KECA 350 (KLR)[2026] KECA 350 (KLR)27 Feb 2026applied
- Kenya Electricity Transmission Company v Mugah (Environment and Land Appeal E062 of 2025) [2026] KEELC 1212 (KLR)[2026] KEELC 1212 (KLR)26 Feb 2026applied
- Mutai (Suing as the Legal Administrator Ad-Litem of the Estate of Erastus K. Langat - Deceased) v Towett & 9 others (Environment and Land Case E008 of 2025) [2026] KEELC 1050 (KLR)[2026] KEELC 1050 (KLR)26 Feb 2026applied
- Mwakaneno v Registrar of Titles, Mombasa & 7 others (Civil Appeal E104 of 2022) [2026] KECA 296 (KLR)[2026] KECA 296 (KLR)20 Feb 2026applied
- Kenya Railways Corporation & another v Mawia & 4 others (Environment and Land Case 180 of 2015) [2026] KEELC 958 (KLR)[2026] KEELC 958 (KLR)13 Feb 2026
- Liyo v Dambi (Environment and Land Appeal E014 of 2024) [2026] KEELC 634 (KLR)[2026] KEELC 634 (KLR)9 Feb 2026applied
- Gikenyi v County Government of Nakuru & 4 others[2026] KESC 12 (KLR)30 Jan 2026followed
- Mukiama v County Government of Meru & another (Environment and Land Case E014 of 2025) [2026] KEELC 139 (KLR)[2026] KEELC 139 (KLR)22 Jan 2026
- Munyua v AMREF Health Africa (Previously Africa Medical and Research Foundation Kenya) (Civil Appeal 481 of 2019) [2025] KECA 2125 (KLR)[2025] KECA 2125 (KLR)5 Dec 2025applied
- Ouya & another v Oseko & 4 others (Civil Appeal E697 & E715 of 2021 (Consolidated)) [2025] KECA 1724 (KLR)[2025] KECA 1724 (KLR)24 Oct 2025
- Irungu v Hayer Marquis Limited & 2 others (Environment and Land Petition E034 of 2021) [2025] KEELC 6602 (KLR)[2025] KEELC 6602 (KLR)30 Sept 2025applied
- Adan v Ministry of Interior and National Administration & 4 others (Employment and Labour Relations Petition E077 of 2025) [2025] KEELRC 2526 (KLR)[2025] KEELRC 2526 (KLR)23 Sept 2025
- ANO v Stanbic Bank Kenya Limited (Cause E166 of 2023) [2025] KEELRC 2505 (KLR)[2025] KEELRC 2505 (KLR)22 Sept 2025
- Kendi v Safaricom Sacco Limited (Employment and Labour Relations Appeal E259 of 2023) [2025] KEELRC 2511 (KLR)[2025] KEELRC 2511 (KLR)18 Sept 2025
- Waqo v Abdi (Suing as the legal representative of the Estate of Siraj Abdi Ali - Deceased)) & another (Land Case Appeal E009 of 2025) [2025] KEELC 6600 (KLR)[2025] KEELC 6600 (KLR)18 Sept 2025
- Kirima v Kanyiri (Environment and Land Appeal E041 of 2023) [2025] KEELC 6313 (KLR)[2025] KEELC 6313 (KLR)16 Sept 2025
- Chief of Kenya Defence Forces & another v Etyang (Civil Appeal E001 of 2024) [2025] KECA 1409 (KLR)[2025] KECA 1409 (KLR)31 Jul 2025
Cite this brief
#Cite this brief
Caselaw, "Samson Gwer & 5 others v Kenya Medical Research Institute & 3 others", Case Analysis (2020). Petition 12 of 2019. Source: https://new.kenyalaw.orghttps://new.kenyalaw.org/akn/ke/judgment/kesc/2020/66/eng@2020-01-10
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.