Corcoran wasn't eager to elaborate much on his operation due to the "delicate" sensitivities around his work, referring further comment to Finance Secretary Ken Ngangan, who couldn't be immediately reached.
Since the summit finished, soldiers and police have blockaded government buildings and stormed Parliament in an ongoing pay dispute over APEC security work.
With so many pressing needs in the nation of 7 million people, many were dismayed at the amount of money spent on the summit, hosting leaders that included U.S. Vice President Mike Pence and Chinese President Xi Jinping.
Corcoran is heading a new unit in the police tasked with recovering all the state assets purchased for APEC in the three years leading up to the summit.
In a statement this week announcing the formation of the unit, Corcoran said he would address "the ongoing misuse and abuse of state assets that were bought using the people's money."
He said the goods had been purchased by government agencies and then "claimed by certain individuals through unlawful means." He asked people to return the cars and other assets immediately and for the public to provide information to help the police.
Police also announced this week that they'd arrested one APEC officer who had used his position to enter the Port Moresby wharf to pry open the fuel caps of parked APEC cars and siphon gasoline from them.
Port Moresby, the capital, has been described by the World Bank as among the world's most violent cities due to high unemployment and brazen criminal gangs known as "raskols." Basic medicines are scarce in Papua New Guinea and polio, eliminated from most countries, has returned.