That's a great question.
We have an audit process, the registrant information validation process, or RIV for short. What we do in those instances is send an email to the domain name holder asking them to confirm that they meet CIRA's Canadian presence requirements and that they confirm their identity. In circumstances where they don't respond or they can't show they meet CIRA's Canadian presence requirements, we suspend the domain name, which means that the website will be taken down. Ultimately, we delete the domain name.