Police continue to probe seven separate deliberately lit fires in the Goulburn area late last year.
They are appealing for information about the fires lit in the Ross Street, Tully Park, Brewer Street and Gorman Road areas between November 19 and December 8, 2019.
Strike Force Cloete was established by The Hume Police District to investigate the outbreaks.
Detectives are seeking information about three men who were seen at the time and captured on CCTV within the vicinity of these fires.
Police are appealing for these men to come forward, or for anyone with information to contact police.
The Hume Police District Acting Crime Manager, Detective Acting Inspector Matthew Packham, said the role of the community in stopping these fires could not be overstated.
"Information provided to police from members of the public can help us identify and suppress fire-bugs before they start lighting," A/Insp Packham said.
"It's distressing to see so many fires being deliberately lit, particularly after recent events in our region.
"I want to urge members of the community - if you see something, say something. If you have suspicions at all and wish to report a crime, don't take the risk - contact police or Crime Stoppers.
"We are also reminding the community that deliberately lighting a fire in this current bushfire period can present a significant and unacceptable risk to both life and property."
Anyone with information, CCTV or dashcam footage relevant to these incidents is urged to contact Crime Stoppers on 1800 333 000 or Goulburn Police Station via 4824 0799. Information is treated in strict confidence.
Meantime, the RFS said two people had been heavily fined in recent days for lighting fires when fire permits were suspended.
RFS operations officer, Lachlan Gilchrist said crews were called to a pile burn on a Taralga Road, Tarlo property at 4.30pm Monday.
The landowner had lit a pile of timber in a paddock. The outbreak was quickly extinguished.
The day before, another property owner was fined for a similar offence at a Tiyces Lane holding, north of Goulburn.
Mr Gilchrist said the offences were an enormous frustration to the RFS.
"People need to obtain a permit and if they light a fire in breach of these laws they can expect police to attend and issue a heavy fine," he said.
"I remind people that given the fire season we're having, we're not taking any chances."
The fine for lighting a fire on a total fire ban day is $1320. The penalty for unlawfully leaving it in the open air before extinguishing it is $2200.
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