New Zealand Police has a national Instagram account and a number of other Instagram accounts serving specific communities (e.g Canterbury).
Do NOT use Instagram in an emergency or to report a crime
In an emergency always call 111, never use Instagram to report an emergency. If you want to report a crime or need other Police services, contact your local station. If you want to give information about crime without revealing your identity you can call the organisation Crimestoppers on 0800 555 111 or email using the secure Giving information form.
NZ Police Instagram accounts
The following links take you to the official New Zealand Police Instagram accounts:
National NZ Police Instagram account
Instagram accounts in your area