The vote makes Oakland the second U.S. city to decriminalize the natural hallucinogens after Denver decriminalized them on May 8. 

The city council's vote directed law enforcement to cease investigating and prosecuting individuals for using or possessing drugs sourced from plants, cacti and – most commonly – mushrooms that contain the hallucinogen psilocybin.

Denver's historic move last month was the result of a narrowly won popular vote. Oakland's public safety commission advanced the resolution to the city council last week.