Any person who obstructs or hinders any person while performing any duty which the person is authorised by this Part, or by any regulation made thereunder, to perform, is guilty of an offence and is liable, on conviction:
(a) where the offence was committed by a corporation--to a penalty not exceeding 200 penalty units, or
(b) where the offence was committed by any other person--to a penalty not exceeding 100 penalty units or to imprisonment for a term not exceeding 3 months.