Police have acknowledged they didn't do enough for a distressed woman who rang 111 scared for her safety, who was later stabbed.
The woman, from Omapere, Northland, called emergency services in October 2015 when her son began behaving erratically and pushed her.
Her son had mental health issues and the woman rang 111 two times for help.
An ambulance only attended after her daughter rang a third time, to report her mother had been stabbed in the back.
Police say they "agree with the [Independent Police Conduct Authority's] findings that Police underestimated the woman's situation from the first two calls."
"We should have acted with greater urgency and should not have delayed our response," says Superintendent Dave Trappitt, National Manager of Communication Centres.
"We also share the IPCA's view that if Police had attended the address sooner, the stabbing may have been avoided."
Police have since reviewed their call policies, and have provided further training to staff on mental health awareness.