Juffa said he had already written to Police Commissioner Gari Baki to investigate the death of one Winterford Tauno along the Kokoda Track.
He demanded to know if the killing was manslaughter and charges should be brought against the Australian tour operator.
“I have received a number of recent reports that some Australian tour operators have been overloading their porters to keep costs down,” said the governor.
Tauno, who hailed from Buna, died on the second day of a trek organised by an Australian tour company, Getaway Trekking.
