Five people were arrested as part of an ongoing police operation targeting the illegal manufacture of meth in the region.

Police have arrested five people and seized more than $2.5 million in assets after a series of raids in Christchurch.

Police Association president Chris Cahill said while the trial was flawed, there is now a conversation to be had about the place of ARTs in policing.

Chris Cahill penned a column calling for a more inclusive culture around the same time Coster started sharing his vision internally.

A Hastings woman has been sentenced to six months and two weeks jail for spitting in the face of a police officer during an arrest.

Chris Cahill said in the past 18 months the association had worked closely with police to develop a process to deal with fatal police shootings.