When can police enter a private home without a warrant in New Zealand?

In New Zealand, police can enter a private home without a warrant in certain circumstances, such as when they are in hot pursuit of a suspect who is fleeing from arrest, or if they believe that someone inside is in immediate danger or that evidence is being destroyed. Additionally, they may enter a property in emergencies, such as to prevent a serious crime or to assist someone in need. In all cases, the police must have reasonable grounds for their actions.