Legally how long can the government keep the "no jab no job" orders in place? At the moment the health order covers a significant chunk of workers including police, teachers, defence, MIQ and health workers.
Then there's the secondary mandate; the requirement for a vaccine certificate to head to restaurants, cafes and big events like concerts.
The initial mandate came into force in December when NZ was facing the highly virulent delta strain - and had low vax rates but a lot has changed since then.
Waikato University law professor Claire Breen talks to Lisa Owen.