An inspector appointed by the Minister may, on producing, if required, evidence of his authority, enter a canal boat at any time between six o'clock in the morning and nine o'clock in the evening and examine every part of the boat and may, if need be, detain the boat for the purpose of his examination, but not for any longer period than is necessary.
If an authorised officer of a local authority or port health authority has reasonable ground for behaving—
he shall, for the purpose of ascertaining whether there is any such contravention as aforesaid or any person on board suffering from an infectious disease, have the like rights of entering, examining and if necessary detaining the boat as an inspector of the Minister has under the last preceding subsection.
The master of the canal boat shall, if required by such an inspector or officer as aforesaid so to do, produce to him the certificate of registration, if any, of the boat, and permit him to examine and copy the certificate, and shall furnish him with such assistance and means as he may require for the purpose of his entry on, and departure from, the boat and his examination thereof.
Any person who refuses to comply with a requisition made under the preceding subsection shall be deemed to have obstructed the person by whom the requisition was made.