Rt Hon JACINDA ARDERN: Of course, as I just distinguished, you will recall, for instance, the cases that we had involving recent releases from a managed isolation facility where they then took a trip into the North. That was a situation where once we were able to establish the context of those cases, we made a decision that we believed we could manage through our contact tracing, our isolation regime, and our rigorous testing without moving levels. So we try and establish that very, very quickly. We gave ourselves quite a small time frame. We notified the public, I believe it was at 1.30 p.m., and then gave ourselves a few hours to make that assessment on whether or not we needed to move alert levels, which we did in the evening at 7 p.m.