Section 71

Any person serving or engaged to serve in any ship to which section 68 applies and holding any certificate or other document which is evidence that he is qualified for the pur-poses of that section or section 69 shall on demand produce it to the Director or a police officer 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:

Penalty, a fine of $200.