He spoke of one occasion where Tipene tried to hit a victim on his hand with a wooden back scratcher, but missed and hit the child on the bridge of his nose, causing a small laceration and dark bruising.
The boy was kept home from school for two weeks while the bruising healed. Judge Cameron said Tipene "asserted" the boy was kept home because he had the flu, but he noted she had pleaded guilty to the incident as it was described.
On another occasion, Tipene told one of the victims to hold out his hands, and he was going to get "five of the best".
The child described each of the smacks as moving progressively further up his arms.
Other times, Tipene smacked the children around the body with the back scratcher or a leather belt.
Tipene told police the children were "damaged as a result of their past" and had "significant behavioural problems", Judge Cameron said.
Ms Burlace said Tipene was having trouble handling the children after they were put in her care, and went to CYFS for help on a number of occasions.
After receiving no help, she turned to physical discipline.
Tipene has previous convictions for drink driving, assault on a police officer, and disorderly behaviour.
She is considered to be a low risk of reoffending.
She no longer has care of the children.
"This form of discipline might have been acceptable in the past but it it totally unacceptable these days," Judge Cameron said. He sentenced her to 80 hours of community work, saying her health problems made an electronically monitored sentence difficult.
He also ordered the destruction of the belt and back scratcher.
In a statement to the Chronicle, a Child, Youth and Family spokesperson said Tipene only asked for help once the investigation had begun, and help was then offered to her.
"There is never any excuse for violence," the spokesperson said. "The court has found her responsible for harming the children and she is being held to account for that."
