(1)Where in the opinion of a superintendent or proper officer the crew of a ship to which this section applies consists of or includes persons who may not understand orders given to them in the course of their duty because of their insufficient knowledge of English and the absence of adequate arrangements for transmitting the orders in a language of which they have sufficient knowledge, then—
(a)if the superintendent or proper officer has informed the master of that opinion, the ship shall not go to sea; and
(b)if the ship is in the United Kingdom, it may be detained.
(2)If a ship goes to sea or attempts to go to sea in contravention of this section the owner or master shall be liable on summary conviction to a fine not exceeding level 5 on the standard scale.