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	LithuaniaReviewed	RomaniaReviewed
Legal family	Common law with customary law	Civil law	Civil law
System of government	Constitutional monarchy	Unitary semi-presidential republic	Unitary semi-presidential republic
Constitution	Act of Constitution of Tonga	Constitution of the Republic of Lithuania	Constitution of Romania
In force since	1875	1992	1991
Capital	Nuku'alofa	Vilnius	Bucharest
Official languages	Tongan, English	Lithuanian	Romanian
Currency	Tongan paʻanga (TOP)	Euro (EUR)	Romanian leu (RON)
Population	105,000	2,860,000	19,000,000
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.	Semi-presidential government with a directly elected President focused on foreign and security policy, a Government answerable to the Seimas, and a separate Constitutional Court.	Semi-presidential: a directly elected President shares executive power with a Government answerable to Parliament, and constitutional conflicts between them are themselves justiciable before the 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 adopted by the Seimas and signed by the President, who may veto and return a bill for reconsideration.	A bill goes to a first-notified chamber and then to the decisional chamber, whose vote is final. The President may return it once for reconsideration or refer it to the Constitutional Court before promulgation and publication in Monitorul Oficial.
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.	Advocates belong to the Lithuanian Bar Association; notaries handle property, company and succession formalities.	Lawyers (avocați) are admitted through local bars affiliated to the UNBR after examination and a two-year traineeship; notaries and judicial enforcement officers are separate professions.

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.