Call for immediate release as UN declares detention of Moussa Tiangari arbitrary
Niger’s authorities are facing renewed pressure to comply with international law after the United Nations Working Group on Arbitrary Detention ruled that the detention of human rights defender Moussa Tiangari lacks legal basis and violates his fundamental rights.
In a landmark opinion issued on 23 June 2026, the UN body concluded that Tiangari’s prolonged imprisonment — now exceeding 18 months — is arbitrary, discriminatory and devoid of due process. The ruling follows a complaint filed by the International League Against Arbitrary Detention (ILAAD) and sustained advocacy by civil society organizations, including the Observatory for the Protection of Human Rights Defenders.
Timeline of a targeted persecution
The sequence of events leading to Tiangari’s arrest traces back to early December 2024. While returning from a Nigerian capital business trip — where he participated in the board meeting of the Centre for Democracy and Development (CDD), a partner organization of Alternative Espaces Citoyens (AEC) — he was abducted from his Niamey home on 3 December 2024. Held incommunicado for nearly 48 hours, concerns arose over potential torture and ill-treatment.
On 5 December 2024, authorities confirmed Tiangari’s whereabouts in the custody of the Central Service for Combating Terrorism and Organized Transnational Crime (SCLCT/CTO) in Niamey. Formal charges were filed by the examining magistrate of the High Court of Niamey on 3 January 2025, sparking a judicial process shrouded in controversy.
His detention coincides with a broader crackdown on dissent since the July 2023 military takeover. Civil society space has shrunk, with repeated violations of freedoms of expression, assembly and association. Tiangari’s case exemplifies this trend, particularly after he criticized government policies during international forums, including the International Humanitarian Conference in Abidjan on 28 November 2024 — commemorating the 75th anniversary of the Geneva Conventions.
Legal violations and procedural manipulation
The UN Working Group’s ruling explicitly identifies multiple breaches of international law:
- Lack of legal foundation for detention
- Serious violations of fair trial rights
- Discriminatory motives tied to his advocacy for human rights and public interest issues
Among the alleged charges are “apology for terrorism”, “endangering state security”, “criminal association linked to a terrorist enterprise”, “undermining national defense” and “conspiracy against state authority”. Conviction on any of these could result in the death penalty.
The situation has worsened due to recent legislative changes. On 26 June 2026, a retroactive amendment extended the maximum pretrial detention period in criminal cases from 12 to 48 months — precisely at a time when Tiangari had already been detained for over a year. His legal team’s request for provisional release was denied on 15 May 2026, despite clear provisions in the penal code limiting pretrial detention in terrorism cases to one year, renewable once.
A pattern of judicial harassment
This is not Tiangari’s first encounter with arbitrary detention. His activism has drawn consistent judicial retaliation:
- May 2015: 10-day detention and prosecution for “undermining national defense” following AEC reports
- March 2018: Four-month detention and charges related to peaceful anti-austerity protests
- March 2020: Six-week detention following an anti-corruption rally denouncing military procurement fraud
Each episode underscores a systematic effort to silence dissent under the pretext of national security.
Urgent demands for justice and accountability
Human rights organizations are calling on Niger’s government to:
- Immediately release Moussa Tiangari without conditions
- Drop all charges against him
- Guarantee reparations for unlawful detention
- Conduct an independent inquiry into allegations of torture during his initial abduction
- Investigate and sanction those responsible for his arbitrary detention
- End judicial harassment of Tiangari and all human rights defenders in Niger
The Observatory emphasizes that Niger must uphold its obligations under the Universal Declaration of Human Rights and the International Covenant on Civil and Political Rights — especially Article 19, which protects freedom of expression. It also stresses compliance with the African Charter on Human and Peoples’ Rights, to which Niger is a signatory.
Failure to act risks further eroding public trust and deepening the climate of fear among civil society actors striving to uphold democratic values in Niger.