Queensland's police commissioner says the state's domestic violence cases are escalating, making up 40 per cent of their work after two more alleged attacks this weekend.
Katarina Carroll says some of the incidents are "beyond belief". A man has been charged after fuel was poured over a car with children inside, while another has been charged with attempted murder.
It came after a man died from burns in a suspicious Logan house fire that allegedly involved petrol being thrown by a woman who also died on Thursday night.
Ms Carroll says there are more than 120,000 domestic violence cases in Queensland each year.
"I think the system vastly protects the majority of victims," she told reporters on Sunday.
"However, as always you have a minority that is so difficult to deal with. It's beyond belief as to what perpetrators get up to in terms of wreaking havoc in the community.
"I can't understand how someone can do that."
Ms Carroll wasn't sure whether domestic violence was more prevalent or people were more comfortable reporting it, but said cases were soaring in Queensland.
"Certainly the numbers are escalating whichever way you look at it," she said.
"There has been an exponential increase in domestic violence over the years - it is 40 per cent of our work currently and in Logan (south of Brisbane) it is about 50 per cent."
Her comments come after police were called to a Toowoomba address on Saturday morning amid reports a man was threatening a woman he knew and pouring fuel over a vehicle containing two children.
A 34-year-old Wilsonton man has been charged with three counts of acts intended to cause grievous bodily harm.
Another Queensland man was charged with attempted murder after he allegedly tried to strangle and suffocate a woman in the outer Brisbane suburb on Kenmore about 2.30am on Saturday.
Ms Carroll says she is confident Queensland Police have enough staff to deal with the rising cases.
But she backed the parents of Hannah Clarke - who was burnt to death in a car with her three children in 2020 by her estranged husband - who said education was the key to stamping out domestic violence.
"If you listen to Hannah Clarke's parents, it's not just about the response," she said.
"It's about education from that very young age, (teaching) about equality and respect.
"I know that sounds simple but that needs to be ingrained in our children and society - that's what it comes down to."
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