Regarding this image, since it's not in the police's official site (https://www.police.govt.nz/search-results/cryptopia) I'll believe it's fake until proven otherwise.
It is made to look like someone contacted New Zeland's police and this is their answer in a personal message, but it'd be an omission from the police to not include such important information in an official announcement.
This is why I believe it's fake.