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	GrenadaReviewed	LibyaIndexed
Legal family	Common law with customary law	Common law	Civil law with Islamic law as a source
System of government	Constitutional monarchy	Constitutional monarchy	Provisional government with contested authority
Constitution	Act of Constitution of Tonga	The Grenada Constitution	Constitutional Declaration (interim)
In force since	1875	1973	2011
Capital	Nuku'alofa	Saint George's	Tripoli
Official languages	Tongan, English	English	Arabic
Currency	Tongan paʻanga (TOP)	East Caribbean dollar (XCD)	Libyan dinar (LYD)
Population	105,000	126,000	6,900,000
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.	Nominally unitary with governorates and municipalities. In practice authority is divided between competing administrations and local armed actors, and municipal councils have in many places become the most functional layer of government.
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.	There is no single functioning legislative process. The House of Representatives passes laws that the High Council of State contests, and the rival administrations issue decrees within their areas of control. Whether a given instrument is law therefore depends on which authority is recognised, which is exactly why this profile is marked as requiring research rather than described as settled.
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 through the Libyan Bar Association, and the profession has continued to function, including in human-rights litigation, despite serious risks to practitioners. Judicial appointments run through the Supreme Judicial Council. Reliable current information on admission requirements and numbers is limited, which is reflected in the verification status of this entry.

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.