I personally haven't been involved in that. I've heard that this has occurred, but I couldn't even state where. I believe it happened in Cornwall at least once or twice, but I couldn't state that for certain.
If as a police officer I were called to that event, I certainly would not start conducting the activities or the operations of the Canada Border Services Agency officer. It would be more to secure the scene and to protect anyone from any target or suspect who may arrive. Traffic would come to a standstill, in all likelihood. We would investigate and try to figure out what had happened and what we needed to do to mitigate the situation and get the CBSA people back out on the line to do their jobs and get traffic moving again. We certainly wouldn't start doing their work. We're not trained to do that.