A Manawatu cop is fighting for a law change to help emergency workers experiencing repeated trauma on the job.

A police dog stabbed while chasing down a man in Rotorua has undergone surgery and is now in recovery.

With cricket on hold during the pandemic, White Ferns batter Katie Perkins is patrolling as a police officer on Auckland's Māngere streets.

"It's something our officers shouldn't have to put up with. It's truly disgusting behaviour," Police Association president Chris Cahill said.

A police officer badly injured in a fleeing driver crash has been discharged from hospital.

The Easter holiday road toll ended at zero for the first time since 2012, Police Commissioner Andrew Coster told Morning Report.