Hi-Plast Limited v Cabinet Secretary, Ministry of Environment and Natural Resources & 3 others
The bottom line
#Kenya's Environment and Land Court dismissed a plastic bag manufacturer's damages claim because the legality of the plastic bag ban was already settled in a 2018 case.
What this practically means
#Executive summary
#Key legal issues
#Whether the suit is res judicata despite the plaintiff not having been a party to the 2018 KAM suit
Yes - the parties in the 2018 suit litigated on behalf of all persons interested in the public right, and the cause of action and subject matter are identical
The court applied Section 7 CPA and Explanation 6. The 2018 KAM judgment, by a three-judge bench of competent jurisdiction, finally determined the legality of the same gazette notice on identical grounds (public participation, statutory authority, Statutory Instruments Act compliance). The plaintiff, though not a party, claims under persons who litigated the public right. The only difference is the remedy sought - damages instead of declaratory orders - which cannot escape the bar.
Whether damages can be awarded for loss flowing from a ban whose legality was upheld
No - damages cannot arise from an illegality; ex turpi causa non oritur actio bars the claim
Relying on Holman v Johnson and Scott v Brown as cited in prior Kenyan decisions, the court held that no court will lend its aid to a plaintiff whose cause of action arises from the transgression of a positive law. The plaintiff's plastic manufacturing business was declared illegal and punishable, so it cannot claim damages for enforcement of that law.
Legal principles established
#- Where parties litigate over a public right, all persons interested in that right are deemed to claim under them (Explanation 6 to Section 7 CPA), so a non-party may be bound by the earlier judgment
- A party cannot seek an alternative remedy (damages) where the substantive question on legality was already settled in a former suit
Court orders
#- 1.The suit is dismissed as res judicata
- 2.No order as to costs
- Jurisdiction invoked
- Article 162(2) of the Constitution (Environment and Land Court); objection raised under Section 7 of the Civil Procedure Act
Key timeline
#Practical implications
#Frequently asked questions
#Cite this brief
#Cite this brief
Caselaw, "Hi-Plast Limited v Cabinet Secretary, Ministry of Environment and Natural Resources & 3 others", Case Analysis (2023). Environment & Land Case 487 of 2018. Source: https://new.kenyalaw.org/akn/ke/judgment/keelc/2023/21471/eng@2023-11-09
Suggested citation format for research notes or client memos. Always verify the original judgment before relying on any point.