I tend not to include drug use in my stories, partly because I’m so uncomfortable with my own consciousness being altered that I don’t even drink coffee. But this is a fascinating look into an aspect of human life I didn’t know much about: synthetic street drugs, how they’re made and identified.

https://www.theverge.com/2017/11/8/16619142/designer-drugs-k2-spice-synthetic-weed-ucsf-lab-dea