Maritime Safety Act 2005
Non-interference with access to and from ports and harbours.
37.—(1) A vessel shall not, without lawful authority, impede or interfere with any other vessel lawfully entering or leaving, or attempting to enter or leave, a port or harbour (including any approaches to, and waters within the confines of, the port or harbour).
(2) A person in command or in charge of a vessel which contravenes subsection (1) is guilty of an offence and is liable—
(a) on summary conviction, to a fine not exceeding €5,000, or
(b) on conviction on indictment, to a fine not exceeding €250,000.
(3) The prohibition under subsection (1) in relation to a vessel does not apply to a vessel in distress or out of control due to being in distress.