Section 179

Where any place within which any court has jurisdiction either under this Act or any other written law or at common law for any purpose whatever is situate on the coast of any sea, or abutting on or projecting into any bay, channel, lake, river or other navigable water, every such court has jurisdiction over any ship being on, or lying or passing off, that coast or being in or near that bay, channel, lake, river or navigable water and over all persons on board that ship or for the time being belonging thereto, in the same manner as if the ship or persons were within the limits of the original jurisdiction of the court.