50Power to enter and inspect canal boats
(1)An inspector appointed by the Secretary of State 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.
(2)If an authorised officer of a local authority or port health authority has reasonable ground for believing—
(a)that any provision of regulations made under section 49 above is being contravened as respects a canal boat, or
(b)that there is on board a canal boat any person suffering from an infectious disease,
he shall, for the purpose of ascertaining whether there is any such contravention 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 appointed by the Secretary of State has under subsection (1) above.
(3)The master of a canal boat shall, if required by such an inspector or officer, 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 of it.
(4)Any person who refuses to comply with a requisition made under subsection (3) above shall be deemed to have obstructed the person by whom the requisition was made.