(1) A person must not obstruct an investigator in the exercise of a power, unless the person has a reasonable excuse.
Maximum penalty--100 penalty units.
(2) If a person has obstructed an investigator and the investigator decides to proceed with the exercise of the power, the investigator must warn the person that--
(a) it is an offence to obstruct the investigator, unless the person has a reasonable excuse; and
(b) the investigator considers the person's conduct is an obstruction.
(3) In this section--
obstruct includes hinder and attempt to obstruct or hinder.