Tundu Lissu's treason verdict: what is at stake for Tanzania's opposition leader, and why Kenya is watching
On Friday 6 November, Tanzania's High Court rules in the treason trial of opposition leader Tundu Lissu, who has been in custody since April 2025. Treason can carry the death penalty. Here is the case, the context of Tanzania's 2025 election, and what it means for the region.
On Friday 6 November 2026, a three-judge bench of Tanzania's High Court in Dar es Salaam will deliver its verdict in the treason trial of Tundu Lissu, chairman of the main opposition party, Chadema.
The case at a glance
| Item | Detail |
|---|---|
| Who | Tundu Lissu, Chadema chairman since January 2025 and a former presidential candidate |
| Arrested | 9 April 2025; held since, now at Ukonga Prison |
| Charge | One count of treason; he pleaded not guilty and calls the case political |
| Possible penalty | Press reports say treason carries the death penalty. Tanzania has not carried out an execution since 1994 |
| Judges | Justices Dunstan Ndunguru (presiding), James Karayemaha and Ferdinand Kiwonde |
| Verdict | Friday 6 November 2026 |
How we got here
Lissu survives being shot 16 times in Dodoma.
Elected Chadema chairman.
Arrested and charged with treason.
Tanzania's general election: President Samia Suluhu Hassan is declared the winner with about 98%. A government commission later finds at least 518 deaths around the vote; the opposition says thousands. Chadema says it was shut out.
Lissu presents his defence; closing arguments end on 29 September.
The international pressure
- The US has suspended immigrant visas and some other visa categories for Tanzanians since January 2026, reviewing ties over "political repression".
- US senators have proposed a bill covering sanctions and aid conditions.
- Lissu's lawyers argue the prosecution failed to prove its case; the state says the evidence supports treason.
Why Kenya is watching
- Neighbour and partner. Tanzania is a key trading partner in the East African Community and co-host of AFCON 2027.
- Regional freedoms. The case has been a flashpoint for activists across East Africa, including Kenyans, over cross-border arrests and political space.
- Stability. Unrest in Tanzania affects trade routes, tourism and investment across the region.
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