WA Police admit they have no idea where a notorious scammer is living, after failed attempts at speaking with the man about an alleged stealing offence.
Investigators have been trying to locate serial scammer Brett Turton, who posed as an American cruise line commander to dupe Mandurah and Perth women out of money.
The Mandurah Mail published a series of stories last year to warn potential victims about Mr Turton - a lothario who preyed on vulnerable women - and revealed he was jailed in Melbourne more than a decade ago for the same tricks.
Police want to speak with Mr Turton after two alleged victims said he stole jewellery from one, to give to the other.
A WA Police spokesman said the investigation remained ongoing, because the whereabouts of Mr Turton was unknown.
"Police have been unable to locate or speak to the man believed to be involved," he said.
"Anyone who has been a victim is encouraged to come forward."
Perth victim Annabelle Morgan and another woman, who wanted to remain anonymous for safety reasons, had met at the airport to do the jewellery swap, handing over a $400 watch, pandora charms and a bag of costume jewellery.
Both women became de facto partners with Mr Turton after meeting him mid-last year on dating website Oasis.
The Mail has interviewed eight women, from Mandurah and Perth, who all said they had been duped by Mr Turton, after meeting him online, forking out cash for travel down-payments, events and flights.
In September, Ms Morgan said she was disappointed charges had not been laid against Mr Turton and guessed he "could be hiding out somewhere".
"I've actually wondered what new name he's using," she said.
To many victims, Mr Turton claimed to be 'Royal Caribbean cruise line commander Brad Collins' and used a fake American accent.