Possession of Liquor by Minors is an offence under Section 11 of the Summary Offences Act 1988 which carries a maximum penalty of $20.
To establish the offence, the prosecution must prove beyond reasonable doubt that:
A defence to the charge is that you were supervised by a responsible adult, or had a reasonable excuse for possessing the alcohol.
A public place is defined as:
A place or part of a premises that is open to, or used by the public, whether or not for payment, and whether or not only open to a limited class of persons.
It includes privately owned places that are open to the public, such as: