Clause 18

If any vessel is detained under section 17 of this Act and the vessel proceeds to sea before it is released by the competent authority, the master of the vessel, and also the owner thereof and any person who sends the vessel to sea, if that owner or person is party or privy to the act of sending the vessel to sea, shall be guilty of an offence under this Act and shall be liable on conviction to a fine not exceeding ten thousand dollars or to imprisonment for a term not exceeding two years or to both such fine and imprisonment.

Any person authorised under this Act to detain a vessel may, if he thinks it necessary, place a police guard on board.