Section 135/4. Whoever to be the member of a body of persons who there is resolution of or notification subject to Security Council of the United Nations Organization designating as a body of persons to have committed an act as terrorization, and Thai Government has notified to acknowledge notification or resolution as aforesaid, such person shall be imprisoned not more than seven years and fined not more than hundred thousands and four ten thousands Baht.
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Section 209. Whoever to be a member of a body of persons whose proceedings are secret and whose aim to be unlawful, is said to be a member of a secret society, shall be punished with imprisonment not exceeding seven years and fined not exceeding fourteen thousand Baht.
If the offender be the chief, manager or office-bearer in such body of persons, such person shall be punished with imprisonment not exceeding ten years and fined not exceeding twenty thousand Baht.
Section 210. Whenever five persons upwards conspire to commit any offence provided in this Book I! and punishable with maximum imprisonment of one year upwards, every such person is said to be a member of a criminal association, and shall be punished with imprisonment not exceeding five years or fined not exceeding ten thousand Baht, or both.
If it be a conspiracy to commit an offence punishable with death, imprisonment for life or imprisonment from ten years upwards, the offender shall be punished with imprisonment of two to ten years and fined of four thousand to twenty thousand Baht.
Section 211. Whoever, to meets in the meeting of secret society or criminal association, the person is said to commit the offence to be such secret society or criminal association unless such person can show that having met without the knowledge that being the meeting of secret society or criminal association.
Section 212. Whoever:
- Procures a meeting place or lodge for a secret society or criminal association ;
- Induces a person to become a member of a secret society or criminal association ;
- Aids a member of secret society or criminal association by contribution of money or in any other way; or
- Assists in the disposal of property obtained by the secret society or criminal association through any offence, shall be punished likewise as a member of a secret society or criminal association, as the case may be.
Section 213. Whenever an offence is committed by any member of a secret society or criminal association in prosecution of the common aim of such society or association, every member who was present at the time of the commission of such offence, or who was present at the meeting where the commission of such offence was decided upon, and the chief manager or office-bearer of such society or association, shall be liable to the punishment prescribed for such offence.
Section 214. Whoever, behaves habitually, lodges or procures the retreat place or meeting place to the persons whom oneself knowing to have the committed offence as provided by this Book 2, such person shall be imprisoned not out of three years or fined not out of six thousand Baht, or both.
If the offence to be committed so as to help the father, mother, child, husband or wife, the Court may not inflict any punishment at all.
Section 215. Whenever ten persons upwards being assembled together do or threaten to do an act of violence, or do any thing to cause a breach of the peace, every such person shall be punished with imprisonment not exceeding six months or fined not exceeding one thousand Baht, or both.
If any of the offenders carries an arm, all the offenders shall be punished with imprisonment not exceeding two years or fined not exceeding four thousand Baht, or both.
If the offender be the manager or person having the duty to give orders for the commission of the offence, such offender shall be punished with imprisonment not exceeding five years or fined not exceeding ten thousand Baht, or both.
Section 216. When the official orders any person assembled to gather so as to commit the offence as prescribed under Section 215 to disperse, such person not to disperse shall be imprisoned not out of three years or fined not out of six thousand Baht, or both.
link to the full text of the Criminal Code: Thailand-Criminal Code-1956-eng