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	ThailandReviewed	IndonesiaReviewed
Legal family	Civil law	Mixed civil, customary and Islamic law
System of government	Constitutional monarchy	Presidential republic
Constitution	Constitution of the Kingdom of Thailand	Constitution of the Republic of Indonesia 1945
In force since	2017	1945
Capital	Bangkok	Jakarta
Official languages	Thai	Indonesian
Currency	Thai baht (THB)	Indonesian rupiah (IDR)
Population	71,700,000	281,600,000
Division of powers	Unitary and centralised, with 76 provinces headed by appointed governors plus Bangkok, which elects its own governor. Pattaya has a special administrative status. Local administrative organisations exist at municipal and sub-district level with limited functions, and the deep south provinces are subject to special security legislation.	Unitary but heavily decentralised since the 1999 regional autonomy laws, which devolved most service delivery to some 500 regencies and cities rather than to the 38 provinces. Aceh, Papua and its successor provinces, Yogyakarta and Jakarta hold special autonomy statuses with distinct arrangements — Aceh includes Sharia jurisdiction and its own political parties; Yogyakarta's governor is hereditary.
How law is made	Bills pass three readings in the House of Representatives and are then considered by the Senate, which may delay. Money bills require Cabinet endorsement. Before royal assent, a bill may be referred to the Constitutional Court for pre-enactment review. The King signs; if assent is withheld, Parliament may reaffirm the bill by a two-thirds majority after 90 days. Constitutional amendment requires specified majorities in a joint sitting including Senate support, and referendums for some chapters.	Bills may originate with the DPR, the President or the DPD on regional matters, and require the agreement of both the DPR and the President — a genuine joint enactment rather than assent. Once approved the President promulgates; if he does not, the bill becomes law after 30 days. The Constitutional Court may then annul it. The 2020 Job Creation Law was found conditionally unconstitutional for defective process, which forced the enactment of a new law on legislative drafting.
Legal profession	Lawyers are licensed by the Lawyers Council of Thailand under the Lawyers Act 1985 after a law degree and the ethics course; a separate and much harder Thai Bar Association examination is required for judicial and prosecutorial careers. Notarial services are performed by lawyers holding a notarial services attorney licence. Foreign lawyers may not appear in Thai courts and foreign ownership of law firms is restricted under the Foreign Business Act.	Advocates are admitted under the Advocate Law 2003 after a law degree, a professional course, the bar examination and two years' apprenticeship, then sworn in by a High Court. PERADI is the principal bar association, though the profession has been divided by competing organisations, and the Constitutional Court has held that multiple bars may coexist while a single body administers admission. Notaries are a separate regulated profession with exclusive competence over deeds of incorporation and land transfers.

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.