Hon CHRIS HIPKINS: It would depend on the notification regime of the country that the person arrives in. Some countries are faster than others at notifying New Zealand about a positive test result. In some cases, people have contacted Healthline from overseas and it's turned out to be that the information that they supplied to Healthline hasn't been correct. There are reports—fairly regularly—of some of these cases that require investigation which are based on hearsay. So they're based on New Zealanders thinking that they know of someone who's tested positive overseas when, after it's subsequently been chased down, that has proven to not be the case. 