The police officer who led the investigation into Grace Millane's murder was diagnosed with cancer shortly before the trial of her killer.

The eight-month operation, called Operation Mystic, investigated an international drug syndicate that had been importing over a tonne of drugs.

A turf war between the Mongrel Mob and the Mongol Nation is believed to behind brazen tit-for-tat shootings and a suspected arson last week.

Mike Bush said we're not going to "arrest our way out of" the increasing gang activity and violence across some parts of the country.

Uniformed police will march in a new Auckland pride parade after being banned from the city's official parade in 2019.

Police are looking at stepping up patrols in the Western Bay of Plenty following two shootings with possible gang links.