The most significant thing that's changed over the last number of years is the toxicity of the illicit drugs. It's only in the last 10 years or so that we're seeing the incredible toxicity in the drug supply, which is really what's contributing to overdose deaths. Unfortunately, initiatives like decriminalization are not going to change that fact. It's the drug supply that is killing people. It's not that they're using too much but that the drug supply itself is toxic.
I'd say that's the single largest change that I've seen in my 25-year policing career.