The producers that are usually referenced here in California are ones that do environmental damage and/or are associated with violent gangs. Few examples: http

The producers that are usually referenced here in California are ones that do environmental damage and/or are associated with violent gangs. Few examples: http://www.slate.com/articles/news_and_politics/uc_breakthroughs_2014/2014/04/green_but_not_green_how_pot_farms_trash_the_environment.html http://www.slate.com/articles/news_and_politics/uc_breakthro..., http://www.livescience.com/17417-marijuana-growers-national-forests.html http://www.livescience.com/17417-marijuana-growers-national-..., http://www.hispanicvista.com/HVC/Columnist/sosio/060810_Sal_Osio_California_Marijuana_gangs.htm http://www.hispanicvista.com/HVC/Columnist/sosio/060810_Sal_... I haven't seen any data to backup the assertion that legalizing and regulating does hurt gangs and reduce the number of environmentally damaging illegal grows. But that is the general mindset of pro-legalization individuals here due to the media reports like the above.