Educational Information Only — Not Legal Advice

    This site provides educational information only and is not a substitute for professional legal advice. Consult a qualified Thai lawyer for personalized guidance. Laws may change. Full DisclaimerPrivacy Policy

    Skip to main content
    Thai LawKNOWLEDGE AUTHORITY
    Last updated:
    Share:

    Educational Information Only

    The content on this page is for general educational purposes and does not constitute legal advice. Every legal situation is unique. For matters involving investigation, arrest, litigation, or formal proceedings, consult a qualified legal professional.

    National Security
    serious offence

    Illegal Assembly During Emergency in Thailand

    Participating in or organizing gatherings prohibited under martial law or the Internal Security Act.

    Last updated: February 2026
    Legal Sections

    Emergency Decree Section 9, Internal Security Act Section 18

    Maximum Penalty

    Up to 2 years imprisonment and/or fine up to THB 40,000

    Severity Level

    serious

    Definition

    Participating in or organizing gatherings prohibited under martial law or the Internal Security Act. Under Thai law, this offence is classified as a serious offence within the category of National Security.

    Elements of the Offence

    For a conviction, the prosecution must prove all of the following elements beyond reasonable doubt:

    1

    Gathering of persons

    2

    In an area subject to emergency decree or martial law

    3

    In violation of assembly prohibition order

    Penalties

    Maximum Penalty

    Up to 2 years imprisonment and/or fine up to THB 40,000

    Actual sentences depend on factors including the severity of the conduct, harm caused, prior convictions, and mitigating circumstances. Courts have discretion to impose lesser sentences within the statutory range.

    Possible Defences

    The following defences may be available depending on the circumstances:

    Gathering for religious purposes

    Authorized by competent authority

    Assembly occurred before prohibition order

    Note: The availability of defences depends on specific facts. Professional legal advice is essential.

    For Foreigners

    Special Considerations for Foreign Nationals

    Foreigners participating in political protests during declared emergencies face arrest, imprisonment, and deportation. Embassy travel advisories strongly warn against involvement.

    When Legal Representation Matters

    If you are accused of illegal assembly during emergency or facing investigation, immediate legal representation is essential to protect your rights and build an effective defence.

    Anglo Siam Legal provides experienced legal services across Thailand for both Thai nationals and foreigners.

    feedback.wasThisHelpful