Yes, it is. Once a year, we produce what is called an estimate of people who are unlawfully in New Zealand. It has to be an estimate, because it's a snapshot in time. It was about 21,000 people last year.
In terms of criminal offending, we have a very accurate database, because every piece of information that's shared with us by the court system, the police or the other criminal jurisdictions is recorded in our case management files, and they are actively recorded under our priority one.... We have a very good list of everything that is reported to us. As I said, the reporting is not infallible, but it's about 99% reliable.