Recently, the UK brought in new legislation to ban the sale of any product classed as a "legal high" - there is now no such thing as a legal high in the UK. This was to ban the sale of products like Spice/K2, Salvia Divinorum and psychoactive herbs. Whilst this may seem like a good move, it also means that people looking to get high are no longer going to buy it legally but are going to have to buy it illegally off the streets. Additionally, it also means that marijuana cannot be legalized for public use. So, rather than legalizing marijuana and bringing crime rates down, it seems that the move could increase crime associated with illegal drugs. It also means there's a wider market for street dealers who can now profit from K2/Spice, Salvia, etc themselves.