I had an air-miss with a blue and white Baron between Milne Bay and Port Moresby. It had no registration. Moresby said they had no traffic in the area. The Baron whizzed out to sea heading towards the Queensland coast. A few years later I flew for Australian Customs and the first trip I did was to a strip in North Queensland as an aircraft had been irregularly landing there. I asked whether it was a blue and white Baron. Bingo, yes it was.