A person who organizes a syndicate or group with the intent to commit a crime punishable by death or imprisonment for life or for at least four years or who joins such syndicate or group or becomes a member of such syndicate or group shall be punished by the penalty prescribed for the intended crime: Provided, That the penalty may be mitigated.

Persons who assemble in large numbers and use violence or intimidation or take destructive action shall be punished by imprisonment or imprisonment without prison labor for at least one year up to ten years or by a fine not exceeding fifteen million won.

Persons who assemble in large number for the purpose of using violence or intimidation or taking destructive action and do no disperse after being ordered to do so for three or more times by officials authorized to control such matters, shall be punished by imprisonment or imprisonment without prison labor for not more than two years or by a fine not exceeding three million won.

(1) A person who fails to perform, without justifiable reasons, a concluded contract for the supply of food or other necessities of life with the State or a public organization in wartime, calamity or other warlike incident shall be punished by imprisonment for not more than three years or by a fine not exceeding five million won.
(2) The preceding paragraph shall apply to a person who interferes with the performance of the contract of the preceding paragraph.
(3) In the case of the preceding two paragraphs, the prescribed fine may also be concurrently imposed.

A person who exercises official authority by false impersonation of a public official shall be punished by imprisonment for not more than three years or by a fine of not more than seven million won.