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Private lotteries. 
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23.—A lottery shall not be unlawful if— 
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(a) the sale of chances is confined to— 
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(i) the members of one society established and conducted for purposes not connected with gaming, wagering or lotteries, or 
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(ii) persons all of whom work or reside on the same premises, and 
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(b) there is no written notice or announcement relating to the lottery except a notice on the premises of the society or other persons concerned or to members of the society. 
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