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PART III. 
 
Unlawful Organisations. 
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Unlawful organisations. 
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18.—In order to regulate and control in the public interest the exercise of the constitutional right of citizens to form associations, it is hereby declared that any organisation which— 
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(a) engages in, promotes, encourages, or advocates the commission of treason or any activity of a treasonable nature, or 
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(b) advocates, encourages, or attempts the procuring by force, violence, or other unconstitutional means of an alteration of the Constitution, or 
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(c) raises or maintains or attempts to raise or maintain a military or armed force in contravention of the Constitution or without constitutional authority, or 
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(d) engages in, promotes, encourages, or advocates the commission of any criminal offence or the obstruction of or interference with the administration of justice or the enforcement of the law, or 
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(e) engages in, promotes, encourages, or advocates the attainment of any particular object, lawful or unlawful, by violent, criminal, or other unlawful means, or 
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(f) promotes, encourages, or advocates the non-payment of moneys payable to the Central Fund or any other public fund or the non-payment of local taxation, 
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shall be an unlawful organisation within the meaning and for the purposes of this Act, and this Act shall apply and have effect in relation to such organisation accordingly. 
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