Thank you, Mr. Chair.
Ms. Welz, I want to start by saying that my thoughts are with you. Your participation in this study and what you're doing honours the memory of your daughter.
The witnesses here today are coming at the problem from different angles, and that's a good thing. Some talk about prevention, some talk about treatment, some talk about harm reduction and some talk about enforcement. We need all of that to try to solve this complex problem.
I'm going to start with Dr. Caudarella.
In your presentation, you said that we know what needs to be done and we know what works, but we haven't been able to put it into practice in a meaningful way. Why is that?