My friend was charged with Minor in Possession, Possession of <1oz of Marijuana, and Possession of False Identification while we were at Sydney in April. He had his trial a couple of weeks ago, and he got I think 100 hours of community service for the MIP, like 30 for the weed, and the fake id was dropped out of "niceness." He has to see a P.O. every two weeks, have drug/alcohol testing, and is on a restricted license for 6 months (automatic with marijuana conviction).
Likewise another girl that was there just had Minor in Possession and she just got community service, and the judge took her license away. (Not suspended, he just literally took it and said she could have it back in like 6 months or something.)
None of the above convictions will be on their permanent records, and that's the main thing.