Certainly Correctional Service of Canada went to Sarposa prison on a regular basis. I am aware that the CIVPOL, the civilian police, went to the NDS facility, or maybe the NDS went to them to give them some assistance in what are called “interview techniques”.
We're talking at a level of detail that as a task force commander I'm peripherally interested, but frankly I had a war to fight, so this thing isn't really on my blotter.