Generally speaking, IP is a private right, and it's up to the rights holders to enforce it. That said, there have been a lot of people who have pointed out, to take the SME example, that they could use help in understanding how to navigate the system. The Canadian Intellectual Property Office does play a role in helping people understand how to use the IP system, how to get a good patent, and how to defend it, but it is the responsibility of the patent holder in general terms.
On March 1st, 2012. See this statement in context.