New Zealand Police has a number of Facebook pages serving specific communities (e.g Queenstown) or for specific initiatives (e.g. recruitment or missing people).
The following links take you to the official New Zealand Police Facebook pages:
Auckland Police
Beach Haven Neighbourhood Policing Team
Dunedin Police
Eastern Bay of Plenty Police
Hawke's Bay Police
Houhora Police
Kapiti Police
Manurewa Police
Marlborough Police
McLaren Park Neighbourhood Policing Team
Missing Persons
Nelson Police
New Zealand Police Museum
North Shore
Operation Olive - Jordan Voudouris Homicide Enquiry
Otorohanga Police
Picton Police
Police Recruitment