How the Thai legal system works

Thailand follows the civil law tradition: the law lives mainly in written codes and statutes, and judges apply those codes. Earlier judgments are influential but do not formally bind later courts the way precedent does in common-law countries.

The main codes

• Civil and Commercial Code — contracts, property, family and inheritance, companies. The one you will meet most often.
• Criminal Code — offences and penalties.
• Civil Procedure Code / Criminal Procedure Code — how cases move through the courts.
• Land Code — land ownership, including the rules that restrict foreign ownership.
• Plus specific acts covering areas such as foreign business, labour, condominiums and computer-related offences.

The court hierarchy

Separate from this ladder sit the Constitutional Court (constitutionality of laws) and the Administrative Courts (disputes with government agencies).

Things that surprise newcomers

• No juries. Panels of career judges decide cases.
• Everything happens in Thai. Proceedings, filings and judgments are in Thai; foreign parties work through interpreters and translated documents — see notarisation & documents.
• Mediation is pushed hard. Courts actively encourage settlement, and a large share of civil cases end in a court-supervised agreement rather than a trial.
• Cases take time. A contested civil case commonly runs well over a year at first instance, and appeals add more.
• Some claims can be tracked more simply. Smaller civil and consumer matters have lighter, faster procedures — see debt & civil claims.

Who does what in the profession

Three distinct careers sit inside what looks, from outside, like one system: judges, who enter through a dedicated judicial training track; public prosecutors, a separate agency that decides whether the state pursues a criminal charge; and licensed lawyers, regulated by the Lawyers Council of Thailand, who advise and represent private parties. See hiring a lawyer for what that licensing means for you as a client.

Where Thai law comes from

The Constitution sits at the top; acts are passed by the National Assembly and published in the Royal Gazette once given royal assent. A great deal of everyday detail — thresholds, forms, procedures — actually lives one level down, in ministerial regulations and notifications issued under a parent act, and these are revised far more often than the acts themselves. That is exactly why guides like this one describe the shape of a rule rather than quoting a figure that may already be out of date by the time you read it.

Specialised courts, in a bit more detail

Alongside the ordinary civil and criminal courts, Thailand runs specialised first-instance courts for particular subject areas, each with judges and procedures adapted to that field:

• Labour Court — employment disputes, generally designed to be faster and less formal than an ordinary civil case; see employment & labour law.
• Central Intellectual Property and International Trade Court — trademark, copyright, patent and cross-border trade disputes; see intellectual property basics.
• Tax Court — disputes with the Revenue Department over assessments; see tax basics.
• Central Bankruptcy Court — insolvency and business reorganisation; see debt & civil claims.
• Juvenile and Family Court — divorce, custody, legitimation and related matters; see family law and custody & legitimation.

Civil courts versus administrative courts

A dispute with a private party — a landlord, an employer, a business partner — generally goes to the ordinary civil courts. A dispute about a decision made by a government agency acting in its official capacity — refusing a licence, imposing a fine, revoking a permit — generally belongs in the separate Administrative Court system instead. Filing in the wrong system wastes time, so this is one of the first questions worth asking a lawyer before filing anything.

Legal aid and access to justice

Thailand has publicly funded legal-aid schemes, run through the Office of the Attorney General, the Lawyers Council of Thailand and the Legal Execution Department, aimed mainly at Thai nationals of limited means and certain categories of vulnerable people. Coverage, eligibility and process vary and are worth checking directly rather than assuming; most foreigners with a contested civil or commercial dispute will still need to engage a lawyer privately — see hiring a lawyer.

Representing yourself

Thai procedure technically allows a party to appear without a lawyer in many civil matters, and simplified small-claims-style tracks are built with that possibility in mind. In practice, doing so in a language you may not read fluently, against an opposing lawyer, is rarely a good trade-off once real money or rights are at stake. Where representation is not viable, at minimum have a lawyer review your paperwork and strategy before you file anything yourself.

Official starting points for further reading: the Courts of Justice and the Office of the Council of State, which publishes consolidated Thai law.