The organisations launched Operation ROAM, releasing the images and details of 19 wanted person on the run. 

Eight of the men were nominated by Victoria Police, but Crime Stoppers Australia chairman Bryan Roach encouraged residents to familiarise themselves with all 19 faces as the people were known to frequently move between states. 

The nationwide hunt will be rolled out over the next two weeks with a $1000 reward for any information that leads to an arrest.

Victoria Police Assistant Commissioner Steve Fontana said the fugitives were wanted for offences including murder, conspiracy to commit murder, serious sex offences, child exploitation and breaches of bail. 

“Operation Roam is a national campaign conducted by police agencies across Australia in conjunction with Crime Stoppers Australia to track down probably the hardest fugitives we’re having difficulty in locating,” he said. 

“The campaign has run for a number of years and has been successful tracking down fugitives wanted for serious offences.”

Mr Fontana said police were asking for community support, but warned Victorians not to approach the men, some of whom have links to firearms.

He said many of the fugitives had managed to remain hidden for years but might still be committing crimes. 

“They might be operating under different names or have changed their description, colouring hair, beards and things like that,” he said.

“You do scratch your head at times and wonder how it does happen but I suppose these people have probably made a conscious decision they don’t want to be held to account for the offences they’ve committed.

“They probably still are offending on some occasions but if they really try hard they probably can avoid detection using false identification, false names, changing their description, breaking or severing contact with known friends or family.”

Mr Fontana encouraged people to call Crime Stoppers on 1800 333 000 or Victoria Police 000 if they know any of the pictured men.