News: Two police officers among six killed in gunfight in rural Australia, page-5

They are country cops. Only a small number of cops in small towns and first year officers start somewhere. This was a simple missing person report. They would have simply walked up to the door and knocked. Totally unexpecting that they would be shot. It could happen to a cop that pulls over a speeding driver or a booze bus case. 3 offenders also dead after "specialist" police took action. Good.