Search "Fentanyl From the Government? A Vancouver Experiment Aims to Stop Overdoses" for the article from the New York Times.
1. How would you evaluate this programme? What would you use as the 'exposure' and primary 'outcome' measures?
1b. What about secondary outcomes and adverse events?
2. What do you think about the mechanism of action / mediators?
3. Could you design a trial to evaluate the intervention?