It is my understanding that it is possible to detain goods that are being imported in parallel, particularly copyrighted goods that are made with the consent of the rights holder in another jurisdiction but are being imported into Canada to offer Canadians pricing parity—better, fairer prices.
I think the issue there again goes to one of the live matters before the committee, that is, statutory damages. I have no sympathy whatsoever for pirates or counterfeiters, but in cases of legitimate disputes the threat of statutory damages can dramatically shift the balance of power. A trademark owner or a copyright owner can actually bully the other party away from even taking an issue because the consequences of losing with statutory damages are so serious, whereas the status quo of proving trademark infringement damages seems to work reasonably well and, in cases of legitimate disputes, allow the parties to make their arguments in court.