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Powers of harbour-masters. 
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5.—Section 25 of the Principal Act is hereby amended by— 
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(a) the insertion in subsection (1) of the following paragraph: 
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“(aa) take samples of oil, oily mixtures, noxious liquid substances, harmful substances, sewage or garbage from the ship concerned;”, 
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and 
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(b) the insertion of the following subsection after subsection (1): 
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“(1A) A harbour-master may enter any oil handling facility within the harbour in respect of which he is harbour-master and there make inspections and carry out such tests as he thinks fit— 
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(a) in relation to the carrying on of any activities in such facility, including the monitoring and assessment of the effects on the marine environment of such activities, or 
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(b) for the purposes of monitoring and assessing the effects on the marine environment of any oil pollution incident.”. 
 
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