I'll speak initially to some of that and then I'll go to my colleagues.
The Canada Border Services Agency works within the legal framework that we have and applies the legislation. It uses a number of factors to ensure that goods and people are in compliance with the laws that we administer and enforce. We work very closely with a number of our partners. We have great communication, collaboration, and co-operation, I would suggest, with Immigration, Refugees and Citizenship Canada, the Canadian Security Intelligence Service, the Royal Canadian Mounted Police, and Global Affairs Canada in the execution of that.
With respect to the various things that we have at our disposal as they relate to admissibility, I'll turn to my colleague.