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Regulations of local authorities. | 
40.—(1) A regulation of a local authority may be proved— | 
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(a) by the production of a newspaper purporting to contain the regulation as an advertisement, or | 
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(b) by the production of a copy of the regulation purporting to be certified by the secretary of the local authority as a true copy. | 
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(2) A regulation so proved shall be taken to have been duly made, unless and until the contrary is proved. |