It has been a deadly summer, with eight homicide investigations launched in 21 days.
They include a fatal shooting in Lower Hutt, a teenager killed on New Year's Day and the death of 38-year-old man on a Christchurch street.
The Police Association says the recent bump in homicides is unheard of for this time of year.
Police Director of National Criminal Investigations Group Detective Superintendent Chris Page, spoke with Charlotte Cook.
