They took issue with the police response when they reported what had happened.
"How many women have to die on the streets and in their home before police respond to violence?," it asked.
Malthus confirmed police had last month arrested a 53-year-old man after a woman was assaulted on K Rd.
The man had been charged with assault and was appearing at Auckland District Court today.
"We have been working closely with the victim to establish exactly what happened and address her concerns.
"We have reviewed the procedures and processes around this report, and accept that in this case, it could have been handled better."
"Police want to reassure the public that incidents of this nature are treated seriously and are investigated appropriately."