While the architect, 26-year-old Faizan Khan, has left Australia, police have taken to court his two "minions" - 23-year-old Obaid and 25-year-old Shaheryer who were studying business degree at La Trobe University.
Officers will check that taxi meters are running for unbooked fares, that drivers and vehicles are properly accredited, and that cars are registered and roadworthy.