I think the CCR membership would agree that it really should be on a case-by-case basis, if at all. A foreign charge can mean all kinds of things. A witness last week raised the hypothetical example that, really, it would only give a foreign government the opportunity to lay a charge against a dissident who came to Canada to preclude them from ever accessing Canadian citizenship, and certainly that's not fair.
On April 19th, 2016. See this statement in context.