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	TongaReviewed	BotswanaReviewed	SudanIndexed
Legal family	Common law with customary law	Mixed Roman-Dutch and English common law	Mixed Islamic and common law
System of government	Constitutional monarchy	Parliamentary republic	Military government following the 2021 coup and 2023 war
Constitution	Act of Constitution of Tonga	Constitution of Botswana	Draft Constitutional Charter for the Transitional Period
In force since	1875	1966	2019
Capital	Nuku'alofa	Gaborone	Khartoum
Official languages	Tongan, English	English, Setswana	Arabic, English
Currency	Tongan paʻanga (TOP)	Botswana pula (BWP)	Sudanese pound (SDG)
Population	105,000	2,680,000	48,100,000
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.	Formally federal, with states headed by governors. The Juba Peace Agreement of 2020 contemplated regional arrangements for Darfur and the Two Areas. Effective authority is currently divided between the belligerents and varies by locality.
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.	The Charter assigned legislation to a joint sitting of the Sovereignty Council and the cabinet pending the formation of a legislative council, which never fully happened. Since 2021 instruments have been issued by decree. There is no verifiable ordinary legislative process at present, which is why this profile is marked as requiring research.
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.	Advocates are admitted through the Sudanese Bar Association, and the profession — particularly the Sudanese Professionals Association and the emergency lawyers' groups — was central to the 2019 protest movement and to documenting subsequent abuses. Judges are career appointments through the Judicial Service Commission. Current admission practice and numbers cannot be reliably confirmed.

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.