POLICE are seeking public help to crack down on suspicious behaviour around several Lake Macquarie fires that began on Tuesday.
Lake Macquarie police are examining the four blazes throughout Morisset that began from 4.30pm amid catastrophic fire conditions.
It follows an 18-year-old man who was served ithe a court attendance notice after he allegedly lit a backyard barbecue at Fingal Bay on Tuesday in contravention of the total fire ban.
The man is due to face Raymond Terrace Local Court on January 20.
State Emergency Operations controller Deputy Commissioner Gary Worboys said police were hopeful they could build on the community response to recent days.
"Now we need help from the community again - this time to assist our detectives who are beginning investigations into the cause of fires suspected of being deliberately lit across several police area commands and police districts," Mr Worboys said.
"The vast majority of people really banded together and supported each other during a time of catastrophic danger. It's unacceptable that the actions of these few individuals endangered the lives and property of others, either intentionally or through ignorance.
"Moving forward into the bushfire season, and as police investigate these offences, we would urge the community to keep up the good work and continue to provide assistance where possible."
Other areas facing fires suspected of being deliberate include Moonbi, Balgownie, Turramurra, Katoomba and the Royal National Park.
Specialist investigators from the NSW Rural Fire Service and police's Strike Force Tronto are assisting local police with their inquiries.
Strike Force Tronto was established by the Arson Unit in 2001 to investigate bushfires that lead to death, serious injury or significant property loss.
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