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Inspection of land. 
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16.—(1) A person appointed by the Minister or by a local authority to be an authorised officer for the purposes of this Act may— 
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(a) in case he is appointed by the Minister, enter and inspect any land, and 
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(b) in case he is appointed by a local authority, enter and inspect any land in the functional area of the local authority, 
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for the purposes of obtaining any information which the Minister or the local authority, as the case may be, may require for the purposes of this Act. 
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(2) A person who obstructs or interferes with an authorised officer when he is exercising a power conferred by this section shall be guilty of an offence under this section and shall be liable on summary conviction thereof to a fine not exceeding five pounds. 
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(3) An authorised officer shall be furnished by the Minister or the local authority, as the case may be, with a certificate of his appointment as an authorised officer and when exercising any power conferred by this Act shall, if requested by any person affected, produce the certificate to the person. 
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