At least in the first instance there isn't any, because if you plead ignorance or if the buyer knows that it's a counterfeit, it's not passing off. However, the way the RCMP get around it....
I'm not a lawyer; I'm an electrical engineer, but we have lawyers in our Canadian Anti-Counterfeiting Network organization. The way it's been explained to us by the lawyers is that they're being given a notice, so now they know it is counterfeit. Then they are being watched either at the store where they sell it or on their second attempt to pass it through the border. At that point they cannot claim ignorance any more. But at least at the first offence they get away with it.