They're briefed upon being transferred to the Parliament Hill detachment. I was assured of this by Assistant Commissioner Michaud, with whom I've had lots of conversations. After this event, I had lots of conversations with him. He assured me they're still briefed on the procedure when MPs or senators arrive without identification or their pin, or if they have a question. If there's any doubt as to the person's identity, they go to the book.
On October 9th, 2014. See this statement in context.