A person must not, without reasonable excuse, obstruct, hinder, assault, threaten, intimidate or resist any of the following persons in the exercise of a function under this Act--
(a) an inspector,
(b) an authorised person within the meaning of Division 3 of Part 11,
(c) a member of staff of the Department who exercises functions under this Act or the Petroleum (Onshore) Act 1991 ,
(d) any other person who exercises any judicial or official functions under this Act or the Petroleum (Onshore) Act 1991 .
: Maximum penalty--(a) in the case of a corporation--10,000 penalty units, or(b) in the case of a natural person--2,000 penalty units.