Thank you very much for that. I also want to talk a bit about drug treatment. We had a previous witness talk about the fact that we need to find ways to actually measure whether the treatment programs work.
When you're treating someone, is the measurement very simply that they are no longer addicted to whatever substance they were addicted to? In the prison system, how would we measure whether the program actually worked, or whether someone simply went through a program for a variety of reasons, maybe so they could tick off a box and get their parole? Maybe it was for the right reasons, but we're not sure if we've had success. How do you measure success when you're implementing a drug treatment program?