This is qld law and go down to link on com.law at the bottom which you end up at UNESCO and learn the argument so when the police pull you over they will go oh that's all to hard or the judge will go to hard .
basically state signs under commonwealth ,commonwealth under UN .So the commonwealth is in favour read anyway so you get the whole story and legal opium as I'm not a legal advisor.
http://www.tmr.qld.gov.au/safety/veh...tructions.aspx
