The COVID-19 Public Health Response (Vaccinations) Order 2021 passed its 2nd reading Wednesday night in NZ.

This legislation will allow for:

1. The lockdown of unvaccinated or insufficiently vaccinated individuals.
2. The ability to restrict travel within the country to unvaccinated or insufficiently vaccinated...
...
10. The appointment of enforcement officers that can be anybody they wish to appoint, and not necessarily police.
...

https://www.australiannationalreview.com/covid-19/the-c0vid-19-public-health-response-vaxxinations-order-2021/