A teenage Rural Fire Service volunteer has been stood down after being charged over nine deliberately lit fires on the NSW far north coast.
NSW Police will allege in court the man lit several blazes in the Tweed Heads area before returning to respond to the fire as part of his duties as a volunteer.
Detectives investigated more than a dozen grass fires, believed to be deliberately lit, in the Burringbar and Mooball areas between October 7 and Wednesday.
Then on Wednesday, police began investigating a suspicious grass fire near a property at Stokers Siding, southeast of Murwillumbah.
Officers later stopped a vehicle in Burringbar, arrested an 18-year-old man and charged him with nine counts of intentionally causing a fire and one count of possessing an unauthorised pistol.
He was refused bail to appear at Tweed Heads Local Court on Thursday.