Department of Racing, Gaming and Liquor (RGL), Western Australia states -
It is an offence for any person on a licensed or regulated venue to:
- Sell or supply, or permit the sale or supply of liquor to a drunk person;
- Allow or permit a drunk person to consume liquor;
- Obtain or attempt to obtain liquor for a person who is drunk to consume; or
- Aid a person who is drunk to obtain or consume liquor.