Just to make sure I understand, again, you're saying that, if somebody registers a trademark without having used it and it turns out there is a business that has used that trademark, there are measures in the Trade-marks Act itself, including having to resort to the Federal Court, assuming they missed the opposition period, which would occur before the registration is granted. Anyone who has prior use of that trademark is the first adopter and has the right to prevent the use and registration by a third party.
On May 12th, 2014. See this statement in context.