Comparison

Read two legal systems against each other

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	TongaReviewed	BotswanaReviewed	AngolaReviewed
Legal family	Common law with customary law	Mixed Roman-Dutch and English common law	Civil law (Portuguese tradition)
System of government	Constitutional monarchy	Parliamentary republic	Unitary presidential republic
Constitution	Act of Constitution of Tonga	Constitution of Botswana	Constitution of the Republic of Angola
In force since	1875	1966	2010
Capital	Nuku'alofa	Gaborone	Luanda
Official languages	Tongan, English	English, Setswana	Portuguese, Umbundu, Kimbundu, Kikongo
Currency	Tongan paʻanga (TOP)	Botswana pula (BWP)	Kwanza (AOA)
Population	105,000	2,680,000	36,700,000
Division of powers	Unitary. The Legislative Assembly legislates for the whole kingdom, and the island divisions of Tongatapu, Vava'u, Ha'apai, 'Eua and the Niuas are administrative districts headed by governors. Below that, town and district officers are elected under the Fakafekau'aki and District and Town Officers Act.	Unitary. Districts and sub-districts administer central policy, and the House of Chiefs (Ntlo ya Dikgosi) is an advisory chamber that must be consulted on bills affecting customary law, tribal organisation and tribal property.	A strongly presidential system in which the President is both head of state and head of government, with a unicameral National Assembly and a judiciary headed by the Supreme Court and a separate Constitutional Court.
How law is made	Bills pass three readings in the Legislative Assembly and require the King's assent, which is a real rather than purely formal step. Ordinary bills need a simple majority. Amendments to the Constitution require a majority in the Assembly at three separate readings and the consent of the King and Privy Council, and clause 79 forbids any amendment affecting the law of liberty, the succession to the throne or the titles and hereditary estates of the nobles.	Bills are introduced in the National Assembly, take three readings with committee scrutiny between the second and third, and go to the President for assent. Bills affecting customary law, tribal property or the organisation of the tribes must first be referred to the Ntlo ya Dikgosi for its opinion, though that opinion does not bind the Assembly.	Bills are debated in general and in detail and voted by the National Assembly, then promulgated by the President, who may request preventive review by the Constitutional Court.
Legal profession	Law practitioners are admitted by the Chief Justice and licensed under the Law Practitioners Act, with the Tonga Law Society as the professional body. Most qualify overseas or at the University of the South Pacific. A practitioner working on land must know the Land Act's allotment system rather than general property law, because the constitutional bar on selling land means conveyancing in the ordinary sense does not exist.	A fused profession of attorneys admitted by the High Court after a recognised law degree and articles of pupillage; there is no split between advocates and attorneys, and the Law Society of Botswana regulates practice.	Advogados admitted through the Ordem dos Advogados de Angola after a law degree and traineeship; notaries and registrars form separate careers.

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.