The police or an employee of a licensed or regulated premises who reasonably suspects that someone may be under 18 years can ask for proof of age [Liquor Licensing Act 1985 s 122]. This includes restaurants, cafes, shops, amusement parlours or arcades, or similar places of public entertainment. The police or an employee may use reasonable force to evict a person under 18 years, or who is suspected of being under 18 years, who possesses alcohol or is on the premises to consume alcohol [Liquor Licensing Act 1985 s 119a]. A minor who re-enters the premises within 24 hours of being evicted, or fails to truthfully answer questions faces a maximum fine of $2000 [Liquor Licensing Act 1985 ss 122, 123, 133].

The police can also order anyone behaving in a disorderly or offensive manner to leave a place of public entertainment. A person who fails to leave or re- enters within 24 hours may be fined up to $2000 or gaoled for up to six months [Summary Offences Act 1953 s 73]. A person with a liquor licence may call the police to arrest anyone who is drunk, behaving in a riotous, indecent, threatening, abusive or insulting manner, or who is fighting [Summary Offences Act 1953 s 74].