(1) A person must not obstruct an authorised officer, or someone helping an authorised officer, exercising a power unless the person has a reasonable excuse.Penalty—Maximum penalty—100 penalty units.
(2) If a person has obstructed an authorised officer, or someone helping an authorised officer, and the authorised officer decides to proceed with the exercise of the power, the authorised officer must warn the person that—(a) it is an offence to cause an obstruction unless the person has a reasonable excuse; and(b) the authorised officer considers the person’s conduct an obstruction.
(3) In this section—
"obstruct" includes assault, hinder, resist, attempt to obstruct and threaten to obstruct.