Headshop drug treatments fell 50% after ban in 2010

The research, the first national study on the impact of the laws, found average treatment rates for new psychoactive substances (NPS) fell by almost 50% in the two years after laws were introduced in 2010.
“Over the two years after the enactment of prohibition-styled legislation targeting NPS and headshops, the rate of NPS related addiction treatment episodes among young adults declined progressively and substantially,” concluded researchers.