There have been many good suggestions on modern safe guards that could prevent this ever happening again , Electronic access to quals etc BUT
for mine this could have been prevented if CASA had continued issuing 5 digit License numbers when a license was achieved.
EG in NSW an "N12345" Victoria V12345 Queensland Q12345 etc etc
If you forge or make up your licence number you would stand a much greater chance of being found out short term than the current practice of using your ARN number with an "L" prefix.
Combined with a CASA web access site to confirm Quals Name and Number plus a company issued license number stamp etc LAMEs would not be burdened by this type of embarrassment again
Just a suggestion as I am merely a legacy engineer working on a legacy fleet.