Pprune is certainly living up to its name as a rumour network but the rumour that the Aussies were arrested or being charged for not having a liquor license is total and utter rubbish with not an ounce of truth to it. You do not need a liquor license to enjoy an alcoholic drink onboard an Etihad flight.
On the other hand the rumours of them being totally drunk, out of control, exposing themselves; a disgrace to their families, Company and Country; sexually harassing the crew, antagonising, harassing and disrupting the other First Class passengers, disobeying the crews and captains initial polite requests and then stern demands, rude and obnoxious behaviour....well.