Madam Chair, as for length of time, I'm not aware, but it goes back several years.
In terms of success stories, I think I shared one with the committee the last time I was here. We had a case in Manitoba where our U.S. CBP colleagues spotted six individuals, I believe, crossing northbound on a cold night. We were informed. We dispatched our team there to, I would say, save the people, because most of them were transported to the hospital. I believe that, to this day, there's still one who is in the hospital with severe frostbite. That's good co-operation, and a good example of how we collaborate with U.S. CBP.
I'll go back to what Aaron said earlier. This is done on a daily basis. We have our integrated border enforcement teams—better known as IBETs—working collaboratively. We have people from different agencies and law enforcement coming together, sharing intelligence and sometimes planning operations. This is strong, because nobody can do it alone. It's bringing people together to ensure the border is safe.