Am now in the regional lounge at LST and just had to provide photo ID to check-in for the flights to MEL and then CBR. I handed over my QF WP card and was asked for my license. I asked if it was a new thing and was told "it is policy, it has always been". It wasn't a requirement on Monday in CBR. Not sure what would have happened if I had checked in online and didn't have checked luggage. Is it a corona virus thing? (there was a case identified in LST a day or two ago)