Comparison

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Because every portal follows the same fifteen-section outline, the comparison is genuinely like-for-like rather than a collage of whatever each government happens to publish.

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Comparison of selected legal systems
Attribute	TanzaniaReviewed	HaitiReviewed	ComorosReviewed
Legal family	Mixed (common law, customary law, Islamic law)	Civil law	Mixed French civil law and Islamic law
System of government	Unitary presidential republic with autonomous Zanzibar	Unitary semi-presidential republic	Federal presidential republic
Constitution	Constitution of the United Republic of Tanzania	Constitution de la République d'Haïti	Constitution of the Union of the Comoros
In force since	1977	1987	2001
Capital	Dodoma	Port-au-Prince	Moroni
Official languages	Swahili, English	French, Haitian Creole	Comorian, Arabic, French
Currency	Tanzanian Shilling (TZS)	Haitian gourde (HTG)	Comorian franc (KMF)
Population	67,400,000	11,600,000	850,000
Division of powers	Presidential system with a Prime Minister, a unicameral National Assembly, and a separate Zanzibar government with its own House of Representatives and judiciary up to the Zanzibar High Court.	Unitary with constitutionally recognised decentralisation to 10 departments, arrondissements and communes, and to the communal section as the smallest territorial unit. In practice the elected local bodies are largely unfilled and replaced by appointed interim commissions.	Federal. Grande Comore, Anjouan and Mohéli each have a governor and their own assembly with substantial autonomy over local administration, while the Union handles defence, currency, foreign affairs and nationality.
How law is made	Bills are read three times with committee scrutiny in the National Assembly. Bills affecting Zanzibar's Union interests require particular majorities. The President assents; a returned bill passed again by two-thirds must be assented to or the Assembly dissolved.	Under the 1987 Constitution bills pass both chambers and are promulgated by the President, who may return a text once for reconsideration. With Parliament not sitting, measures have been issued as executive decrees since 2020 — a practice widely criticised as lacking constitutional foundation, and a key reason to check the current status of any recent instrument before relying on it.	Bills originate with the government or members of the Assembly of the Union, are examined in committee and passed by the Assembly, then promulgated by the President. Matters within island competence are legislated by the island assemblies, and disputes over the boundary between Union and island competence are a standing feature of Comorian constitutional practice.
Legal profession	Fused; advocates are admitted to the roll of the High Court after an LLB and the Law School of Tanzania, with the Tanganyika Law Society as the mainland professional body.	Advocates are admitted to one of the departmental bars (Ordre des avocats), most prominently the Port-au-Prince bar, after a law degree and a period of pupillage. Notaries hold a separate public office with exclusive competence over authentic acts including land transfers, which matters greatly given widespread informality in land title.	A small bar of avocats admitted after French-model legal training, supplemented by qadis who require religious-law qualification for the personal-status jurisdiction; many practitioners train in France or Madagascar.

A comparison table flattens nuance by design. Where a difference matters to a decision you are making, open both portals and read the section in full — the constitutional detail behind a one-line summary is often the part that governs the outcome.