I might turn to my colleague again, but essentially we do a risk-based compliance activity. We rely on the courier companies to ensure that their documentation is correct with respect to the country of origin, the value of the good and the description of the good. Then over time, using some of the technologies my colleague described before, using techniques such as artificial intelligence, you start to understand what you're seeing. It will flag items for our officers that they might want to take another look at to validate that those elements have been properly declared.
At a deeper level, there is a full-on books and records review compliance activity by which we go into the company, do a sample and do a deep examination to satisfy ourselves that the program is being administered properly.