Kibajuni (Bajuni) and Swahili language analysis (LADO): Somalia, Kenya or Tanzania

A person who says they are Bajuni is claiming a Somali nationality while speaking a language that most people associate with East Africa further south. Swahili is a national and official language of Kenya and Tanzania and is widely used across the region, so a decision maker may wonder whether a claimed Bajuni is in fact a Kenyan or Tanzanian national. Documents rarely settle the matter, since many claimants have none, and Somali records, where they exist, may be in Somali, English or Arabic.

This is where language analysis for the determination of origin is requested: at the first decision, at reconsideration, and very often in an asylum appeal where the claimant's knowledge of the islands and coast is disputed. Lawyers acting for claimants frequently ask for an independent counter-report when they question an existing one. The same issues arise in asylum systems in North America, Australia, New Zealand and beyond.

Swahili is a Bantu language with a long history as a language of trade on the East African coast, which is why it carries loanwords from Arabic and, to a lesser degree, Farsi, Portuguese, English and German. Its standard form rests on the Kiunguja dialect of Zanzibar, and Tanzanian usage is usually regarded as closest to that standard. Kenyan Swahili mixes more readily with English, and in Nairobi the youth register Sheng changes quickly. Congolese Swahili, with French and Lingala borrowings, forms another distinct profile.

A Bajuni analysis sets the recording against these reference points. The analyst listens to pronunciation, vowels and consonants, intonation and grammatical forms, and to the everyday vocabulary a person uses for home, family, work and religion, asking whether it fits a Kibajuni-speaking background or the standard and urban forms heard in Tanzania and Kenya. Signs of schooling in standard Swahili, English mixing typical of Kenyan speech or a familiarity with Sheng are all weighed, because each points to a different life history.

Because the Bajuni live within Somalia, contact with Somali matters as much as the Swahili itself. The analyst notes whether and how the speaker uses Somali, and which variety it resembles: Northern Somali, the basis of the standard; Benadir Somali of the central coast and Mogadishu; or Maay, spoken mainly in the inter-riverine south. Code-switching between Kibajuni and Somali, Arabic religious vocabulary and the names a person gives to places along the coast are all part of the evidence.

Second languages also tell a story about movement. A person may have spent years in Kenya, in a refugee setting or in another country before travelling on, and that history leaves traces in vocabulary and pronunciation that do not by themselves contradict a Somali origin. The report distinguishes between features learned later in life and the features of early language socialisation, and explains which explanation the evidence favours.

• Kibajuni features against standard Tanzanian Swahili and Kenyan coastal and urban speech
• Somali use: Northern, Benadir or Maay, and how the speaker mixes it with Swahili
• Arabic loanwords and religious vocabulary in everyday speech
• Traces of English, Sheng or later stays in Kenya and elsewhere

SILA Linguists® works from a recording, often an interview, which is transcribed with attention to dialect features. Native-speaker analysts with linguistic training work with forensic linguists, applying methods from forensic phonetics, dialectology and sociolinguistics and, where helpful, acoustic measurement software. The claimed Somali origin is weighed against other plausible origins on the Kenyan and Tanzanian coast, and the speaker's background, including time spent in other countries, is taken into account.

Every step is documented in a written expert report that describes the data and methods, discusses alternative explanations and states the degree of uncertainty. The report is an expert, reasoned opinion that helps the decision maker; it does not prove nationality. We follow recognised professional codes of practice for forensic speech analysis, and our analysts can give evidence as expert witnesses before tribunals. A 2010 UK tribunal ruling emphasised that reports by native-speaker analysts with expert supervision should be given significant weight, and our team is organised on that basis.

LADO looks for the local: a coastline, an island, a community. A nationality assessment asks the broader national question, comparing a person's command of national vehicular languages and their knowledge of institutions, administrative terms and shared cultural references with what a lifelong resident of Somalia, Kenya or Tanzania would normally show. For Bajuni claimants the two approaches complement each other well, since a minority dialect can be traced locally while knowledge of Somali, rather than Kenyan or Tanzanian, national life adds a second line of evidence.

SILA Linguists® supports Bajuni cases beyond the report. We arrange Swahili and Somali interpreters for solicitors' meetings, interviews, tribunal hearings and community appointments, face to face, by video through the SILA Linguists® app, or by telephone at any hour, every day of the year, with a female or male interpreter on request. Certified Swahili translation and certified translation of Somali, English or Arabic documents come with a signed statement of accuracy accepted by UK authorities, and Swahili transcription with time stamps and translation turns interview recordings into a usable written record.

Our vetted, trained and qualified analysts can support immigration authorities, solicitors and barristers preparing asylum appeals, courts and tribunals, and charities and refugee organisations working with Somali communities, across the UK, the United States, Canada, Australia, New Zealand and beyond. Each case has a single project team, vetted specialist linguists and strict confidentiality under signed agreements and UK GDPR.