Yes, that would certainly be an interesting area for us to look at.
I'll just make the point that when we did that audit on control and enforcement, we were looking at the difference between removal orders that had actually been issued--so people who had been ordered to leave the country--and the actual confirmed departures. At the time we looked at that, there was a gap, quite a significant gap of 36,000, so we were saying that the department had to get a better way of enforcing the removal orders and getting better information.
But yes, we can certainly look at how the department measures the effectiveness of its criteria.