Section 50

Any person serving or engaged to serve in any ship and holding any certificate or other document which is evidence that he is qualified for the purposes of section 47 shall on demand produce it to the Director or a surveyor of ships or any person authorised by the Director and (if he is not himself the master)

to the master of the ship; and if he fails to do so without reasonable cause he shall be guilty of an offence and liable on conviction to a fine not exceeding $2,000.

Certificate obtained by fraud.