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World risk · Geopolitics and conflict

Tanzania's High Court convicts opposition leader Tundu Lissu of treason

The test Between 1 Nov 2026 and 1 Nov 2027, the High Court of Tanzania convicts Tundu Lissu of treason at first instance (a conviction under appeal is not final).

Not under way · Confidence: medium · Reviewed 1 Nov 2026 · Scores from 1 to 10

This page answers: What could happen, how it is scored, and who is exposed?

Using this page
  1. Read the two scores: Likelihood and Impact are kept apart.
  2. Check what is happening, each fact with its source.
  3. Use the calendar for the dates to watch.

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Likelihood
4Elevated steady this month
Impact
4Elevated steady this month
Breadth4
Depth1
Duration5
Hard to substitute4
Canada pointNot added0

Impact is the average of the four parts, rounded, plus one point when Canada is directly hit on two or more channels, up to 10.

Two separate scales from 1 to 10. Strature never multiplies or merges them.

What changed

Dated, newest first

  1. Panel chaired by Justice Dunstan Ndunguru set judgment for 6 Nov 2026; prosecution says it proved the charge (its view) [5]
  2. Lissu argues the prosecution failed and asks for acquittal if treason is not proved [3]
  3. Held since April 2025; prosecutors allege he incited the public to rebel and to stop the 2025 election; he pleads not guilty; his lawyer calls the charges politically motivated; potential death penalty; three security officials he sought as defence witnesses declined to testify [1]

Why it matters

Opposition leader Tundu Lissu has been held since April 2025 on a treason charge that carries a possible death penalty; he pleads not guilty. The High Court found a case to answer on 21 Aug 2026, and both sides closed their cases by 29 Sep. The three-judge panel set its judgment for 6 Nov 2026. A conviction would be open to appeal and so not final.

Why Likelihood 4 Pushes: case to answer; judgment date set; officials declined to testify for the defence. Brakes: the defence's submission that the prosecution failed; international pressure; a possible postponement.

Why Impact 4 Threshold case a first-instance conviction.

The other facts on file (2)
  • Three-judge panel finds a case to answer [2] (21 Aug 2026)
  • US Senate bill introduced 19 May 2026 would suspend US aid and trade support pending certified reforms and allow visa bans and asset blocks; not law [4] (22 May 2026)

Where it sits

Exhibit R-1 · Map

Where this risk sits

Size shows Impact. Colour shows the Likelihood band. The two scores are never combined.

Tanzania's High Court convicts opposition leader Tundu Lissu of treason. Impact 4 of 10, Elevated. Likelihood 4 of 10, Elevated.
  • Low 1–3
  • Elevated 4–6
  • High 7–8
  • Severe 9–10
  • Bigger circle: higher Impact
  • Solid ring: under way
  • Red ring: highest Impact on this map
  • Where it starts
  • Who it reaches

The risk on this map

  1. Tanzania's High Court convicts opposition leader Tundu Lissu of treasonImpact 4 of 10, Elevated. Likelihood 4 of 10, Elevated. · Tanzania
SourceStrature world-risk cards. Cards reviewed 1 Nov 2026. Map: Natural Earth 1:110m, Equal Earth projection. Country names imply no position on sovereignty.
Exhibit R-1 · TANZANIA · strature.net

How it spreads

If

Between 1 Nov 2026 and 1 Nov 2027, the High Court of Tanzania convicts Tundu Lissu of treason at first instance (a conviction under appeal is not final).

Not under way

Channels 4 on the card

  1. CanadaNo Canadian loss sourced.
  2. Relations with the WestA conviction would add weight to the US bill's aid and sanctions tools [4].
  3. PoliticsIt would keep the main opposition leader out of politics while any appeal runs (Strature's view).
  4. Investment climateStrature's view: legal risk for foreign partners rises; no sourced figure.

Countries 1

Who is exposed

Countries
Tanzania, United States
Sectors
Mining and metals, Energy and pipelines

Three scenarios and their signposts

  1. S1

    Conviction

    The panel convicts, and an appeal follows (not final).

  2. S2

    Acquittal

    The panel finds the case not proved.

  3. S3

    Delay

    The court postpones the judgment.

The signposts of each scenario
PathSignpost
S1The judgment of 6 Nov 2026
S2The same judgment
S3A new date announced in court

No probability is given for the three paths.

Dates to watch

Calendar

The dates to watch

A dot is a day, a bar a month or a year; a hollow mark is tentative. The line marks today.

  1. 6 Nov 2026 Judgment of the High Court panel [5] Declared · Outside event

    Remind me

  2. 1 Nov 2027 End of the scored window (no date set for US Senate action on the bill) [4] Declared · Strature date

    Remind me

Sign in, with alerts on, for an email 7 days and 1 day before.

SourceStrature world-risk card; the dates cite the sources below.
Exhibit R-3 · TANZANIA · strature.net

The other side

An acquittal or a political settlement would ease US pressure [4] and could reopen space for the opposition (Strature's view).

Connected in Strature

Sources

5 sources, numbered as the text cites them

  1. Tanzanian opposition leader urges courageous verdict in treason trial. Africanews · 23 Sep 2026 · News · confidence medium · retrieved 1 Nov 2026
  2. Tanzanian opposition leader to face trial on treason charges. Africanews · 21 Aug 2026 · News · confidence medium · retrieved 1 Nov 2026
  3. Lissu completes final defence, tells judges treason charge ends in conviction or acquittal. The Chanzo · 28 Sep 2026 · News · confidence medium · retrieved 1 Nov 2026
  4. U.S. Bipartisan Bill Triggers Review of Tanzania Bilateral Relationship. TanzaniaInvest · 22 May 2026 · News · confidence medium · retrieved 1 Nov 2026
  5. Lissu treason verdict set for November 6. The Citizen (Tanzania) · 29 Sep 2026 · News · confidence medium · retrieved 1 Nov 2026

Reviewed 1 Nov 2026 · version 1 · last change: first review · All risks