Institute for Migrant Rights
Railway line at Cianjur station, c. 1890 · KITLV, CC BY 4.0

Migration Jurisprudence from the South › Tanzania

Robert John Penessis v. Tanzania

African Court on Human and Peoples’ Rights · Tanzania · 2019-11-28 · Regional court or body

Citation: Application 013/2015
Type of case: Constitutional and human rights
Outcome: Decided for the migrant side

Question

Was the detention of a man as an illegal immigrant, when he claimed Tanzanian nationality, lawful?

What the court decided

No. The state had to prove he was not a national; his detention and the denial of nationality were arbitrary.

In plain language

A man born in Tanzania was arrested and held for years as an illegal immigrant. The African Court said the state, not the man, had to prove he was a foreigner.

Dalam bahasa sederhana

Seorang pria kelahiran Tanzania ditangkap dan ditahan bertahun-tahun sebagai imigran ilegal. Mahkamah Afrika menyatakan negara, bukan pria itu, yang harus membuktikan ia orang asing.

Pertanyaan: Apakah penahanan seseorang sebagai imigran ilegal, padahal ia mengaku warga Tanzania, sah?

What happened afterwards

  • 2019-11-28: Judgment.

Sources

Open this decision in the interactive collection (compare, filter, Indonesian view, downloads).

Cite as: Institute for Migrant Rights (2026), Migration Jurisprudence from the South, version 0.1, https://theimr.org/court-decisions/d/afct-penessis-2019/. This page summarizes a court decision for research and advocacy; it is not legal advice.

For researchers

This collection of decisions is built for empirical legal scholarship and socio-legal research on migration and the rights of migrant workers, as well as for advocacy.

The coded variables support statistical analysis in law: cross-national comparison, regression and event-history designs, and law and economics questions such as how recruitment fees, wage protection and limits on changing employer affect migrant workers. The data can be downloaded for replication.

Keywords: case law; jurisprudence; judicial decisions; comparative constitutional law; courts and migration; judicial behavior; litigation outcomes; refugee law; non-refoulement; citizenship and nationality; empirical legal studies; empirical legal scholarship; quantitative legal research; statistical analysis in law; law and economics; law and economics of migration; comparative law; socio-legal studies; legal pluralism; migration law; labor migration; migrant workers’ rights; human rights law; access to justice; Global South; Asia; Africa; Middle East; Latin America; Indonesia; open data; replication data.