I used to live in Perth Australia for 8 years, I remember in 2011 the mayor of my district got arrested by Italian authorities together with Australian federal police for being a member of the Calabrian Mafia. He had been caught on wire-taps over in Italy with high ranking leaders.
Its a strange thing over there in Australia, these guys are seriously invisible, its not like America, you never see charts or family structures etc. Only a few names ever leak out. These guys never seek the limelight like a Gotti or Merlino, there pretty old school.
I think unlike in America law enforcement is ill-equipped and inexperienced in dealing with Mafia.