The police in Papua New Guinea say investigations into the Rabaul Queen disaster should wrap up in about two weeks.
The Commission of Inquiry into the disaster was unable to determine how many people died, but police estimate between 142 and 161 people perished when the ship sank near Lae last year.
The Police Commissioner Tom Kulunga says detectives have been gathering evidence in five provinces over the past four weeks.
"They're now investigating, collecting statements from relatives and people who've been actually on the boat, relatives of the ones who've actually perished. And it'll take some time before they complete that, preferably about two weeks' time."
Tom Kulunga says detectives will collate their evidence in Port Moresby before deciding on the next course of action.