The victim began to drift in and out of consciousness and had to be airlifted to Whangārei Hospital.
Judge De Ridder accepted that Ngawhika was provoked and the situation turned into one of self-defence as she became concerned for her safety, leading her to pick up the knife.
A positive report was presented to the court from social workers for Ngāti Whātua, who acknowledged the work she had done since the incident.
“You have managed to get yourself out of an undesirable situation in Kaitāia and that is to be encouraged,” Judge De Ridder said.
Ngawhika was sentenced to 100 hours of community work and nine months of supervision.