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	GrenadaReviewed	HaitiReviewed
Legal family	Common law with customary law	Common law	Civil law
System of government	Constitutional monarchy	Constitutional monarchy	Unitary semi-presidential republic
Constitution	Act of Constitution of Tonga	The Grenada Constitution	Constitution de la République d'Haïti
In force since	1875	1973	1987
Capital	Nuku'alofa	Saint George's	Port-au-Prince
Official languages	Tongan, English	English	French, Haitian Creole
Currency	Tongan paʻanga (TOP)	East Caribbean dollar (XCD)	Haitian gourde (HTG)
Population	105,000	126,000	11,600,000
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. The state comprises Grenada, Carriacou and Petite Martinique; Carriacou and Petite Martinique have a Ministry and local administration but no separate legislature.	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.
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 pass three readings in both Houses and receive the Governor-General's assent. Constitutional amendments to entrenched provisions need a two-thirds majority in the House of Representatives and then approval by a referendum, a double lock that has defeated every reform package put to voters.	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.
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 legal practitioners admitted by the High Court under the Legal Profession Act, after a law degree and the Legal Education Certificate. The Grenada Bar Association represents practitioners.	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 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.