New South Wales, Australia
The relevant law is the Liquor Act 2007, the relevant section is 117. It is illegal to supply liquor to minors (under 18s) on licences premises: unlicensed premises are complicated so we won't go there. It is a defence to the charge if:
- the minor was at least 14, and
- before the liquor was supplied the person saw an evidence of age document that would reasonably be applicable to the minor that indicated the minor was at least 18.
"evidence of age document" for a person means any of the following documents that bears a photograph of the person and that indicates (by reference to the person’s date of birth or otherwise) that the person has attained a particular age, but does not include any such document that has expired or otherwise appears not to be in force:
(a) a motor vehicle driver or rider’s licence or permit issued by Roads and Maritime Services or by the corresponding public authority of another State or Territory or under the law of another country,
(b) a Photo Card issued under the Photo Card Act 2005 ,
(c) a document (referred to as
"an existing RTA proof of age card" ) issued by the Roads and Traffic Authority under section 117EA of the Liquor Act 1982 and in force immediately before the repeal of that section by this Act,
Note : Existing RTA proof of age cards cease to be valid for any purpose on 14 December 2008-see Division 3 of Part 2 of Schedule 1 to this Act.
(d) a proof of age card (however described) issued by a public authority of the Commonwealth or of another State or Territory for the purpose of attesting to a person’s identity and age,
(e) an Australian or foreign passport,
(f) any other class of document prescribed by the regulations for the purposes of this definition.
There are currently no relevant regulations that deal with (f).
In addition, the person supplying it must have a current Responsible Service of Alcohol qualification and either be or be under the supervision of the Licensee for the premises.
So, each person even within a premises must satisfy themselves that the person they are supplying is not a minor, they cannot rely on anyone else's say so.